Common questions

Why does my 86 F150 hesitate and sometimes stalls?

Why does my 86 F150 hesitate and sometimes stalls?

In 86 it will say emissions, not check engine, that’s the last year for that. Honestly, you will have less problems from the efi than the carb, there is a lot to change to go back. Usually if there are no hard codes the light stays off, so you are probably there anyway. More than likely you have a vacuum problem. probable a line, ir a gasket.

What makes a Dodge Dakota stall after starting?

It’s a 4.7 motor. Not throwing any codes.no vacuum leaks…it just stalls about 2 minutes after starting… Starts fine usually. Dies intermittently redstarts sometimes not others could be cold or hot stopped or on highway. No codes found instrument lights don’t come on when this happens it is just like engine disappeared.

Why does my Dodge Power Wagon stop running?

It starts right up and runs slow or fast for a short while and then stops. If you try to start it again, it turns over but will not start. If you let it sit for a bit, it will start and do the same thing. Have checked fuel lines and filter.

What causes a truck to stall at idle?

Cleaning and/or making an adjustment to the throttle body may correct the problem. Engine running at idle, plug the IAC passage, and the RPM (revolutions per minute) should be at or near 400 rpm. A vacuum leak present could also cause the engine idle to be improperly controlled and needs to be identified before any adjustments are made.

What causes rough idle on a Ford F150?

A common cause of rough idle is a bad exhaust gas recirculation (EGR), in which a new EGR valve can solve this problem. The cost is $200-$400. Handy Hint: Have you heard of the F150’s quiet start? If not, it will let your F150 idle at lower RPMs so to not wake up the neighbors. You can find out more here in my guide to the F150 quiet start option.

Why does my Ford F-150 lose power?

When you go over 2000rpms it rattles and while going uphill it loses power and acceleration, and sometimes it smokes. It might be that your engine requires an internal cleaning removing the crankcase and washing the whole throttle body. It might even stall and shutt off because of this problems

When does a Ford F-150 shut down while driving?

It did it several times today but it seems to be only doing it when i drive at slower speeds 10-30mph or while idling when on interstate seems to run fine would that still be IC module? 9 people found this helpful.

Why does my Ford F-150 shut down after 2 miles?

Same exact problem on my 95 f-150 4.9L. Runs great first start but after 2 miles or if very hot outside, it heaves and misses and eventually shuts down. Starts after sitting for 45 minutes again. I did replace rotor, cap wires plugs and coolant temp sensor as well as the starter.

A common cause of rough idle is a bad exhaust gas recirculation (EGR), in which a new EGR valve can solve this problem. The cost is $200-$400. Handy Hint: Have you heard of the F150’s quiet start? If not, it will let your F150 idle at lower RPMs so to not wake up the neighbors. You can find out more here in my guide to the F150 quiet start option.

Why does my F-150 truck not start?

The next time the truck acts up depress the accelerator pedal and try to start it. If it starts up then there could be a problem with the Idle Air Control Valve, clogged IAC passages, or (less likely) an electronic problem with the IAC wiring.

In 86 it will say emissions, not check engine, that’s the last year for that. Honestly, you will have less problems from the efi than the carb, there is a lot to change to go back. Usually if there are no hard codes the light stays off, so you are probably there anyway. More than likely you have a vacuum problem. probable a line, ir a gasket.

What makes a Ford F-150 hesitate when accelerating?

Driving 2011 ecoboost f150. At 70-80 mph when quick passing a vehicle the truck shutters. I thought it was the transmission. Just started. Any ideas. 37 people found this helpful.

What is the error code on a Ford F-150?

It’s a 2008 mexican Ford truck, 8 cilinders and 4.6L engine with automatic transmission. The error code P1747 ir related to the transmission: pressure in the control solenoid, and most likely the other error codes are related.

Why does the a / C quit working on my Ford E-series?

One end of the tee goes to the reservoir and the other through a grommet through the firewall to your AC controls. The system is designed to hold vacuum whenever there is a high load demand (Climbing a hill, passing or taking off from a stop with a heavy load.)

What causes a Ford F150 to stall at a stoplight?

A dirty throttle body can lead to stalling in your F150. If you let off of the gas coming to a stoplight and it stalls for a second or two and recovers itself, it very well could be a dirty throttle body that is causing the problem.

What causes a Chevy Impala engine to stall?

Bad gas- can cause an engine to stall out. Water in the gas tank can also cause gas to not fire properly. If there were no other symptoms and suddenly you find that the vehicle is running very rough, bad gas could certainly be the problem.

How long is the 1980-1986 Ford F150?

We anticipate this will take under 1 hour. Discussion in ‘ 1980 – 1986 Ford F150, F250 and F350 Truck Forum ‘ started by Kirby93, Dec 10, 2018 .

Is the temperature gauge on my F150 bad?

The truck starts right back up every time. Once you get past the little hesitation she is smooth as silk. The TPS is new, the IAC valve is new and the MAF sensor is new. The temperature gauge doesn’t work the switch might be bad but I think the truck would run like crap all the time if that were the case…

When does a 1985 Ford F-150 stop running?

My 1985 F-150 5.8L runs good when i first crank it and start driving and get it good and warm up. And when I get to a stop light it dies and will not crank back. And I’m getting towed home. It cools down it starts right up.

We anticipate this will take under 1 hour. Discussion in ‘ 1980 – 1986 Ford F150, F250 and F350 Truck Forum ‘ started by Kirby93, Dec 10, 2018 .

Why does my 86 Ford F150 cut out?

I have an 86 Ford F150 , 302 EFI, Automatic. I have been working on this truck for a while and can not figure out why it cuts out on me. I thought I had it fixed and now it is back. I have replaced many parts, most recently the vacuum modulator because of fluid in the vacuum line. Please help me fix this.

When does a Ford F150 hesitate and sometimes stalls?

Discussion in ‘ 1980 – 1986 Ford F150, F250 and F350 Truck Forum ‘ started by Kirby93, Dec 10, 2018 . Once the truck gets to operating temperature it hesitates and sometimes stalls, the stalling happens mostly in reverse and it only happens in drive if you hit a certain spot in the gas pedal when taking off.

Why does my Ford F150 idle so much?

Here are the main components of the ignition system, as well as what would cause them to make your F150 idle roughly. Spark Plugs – One of the absolute most common causes (if not the most common reason that your F150 may be misfiring) is the spark plugs.

What kind of engine does an 86 Ford F150 have?

I have an 86 Ford F150 , 302 EFI, Automatic. I have been – CarGurus Please help. I have an 86 Ford F150 , 302 EFI, Automatic. I have been working on this truck for a while and can not figure out why it cuts out on me. I thought I had it fixed and now it is back.

What should I do if my Ford F-150 stalls?

Shut it down for a minute and take it for a short drive. Idle quality should be much better. 34 people found this helpful. Driving my Ford 2001 F150 , 138000 miles, runs good but stops sometimes like it’s not getting any gas. Wait 10 minutes and it will start up again.

Is there a problem with my Ford F150?

Driving my Ford 2001 F150 , 138000 miles, runs good but stops sometimes like it’s not getting any gas. Wait 10 minutes and it will start up again. What is the problem?. 49 people found this helpful.

What are the common issues with the Ford F150?

But what are some of the common issues with the Ford F150? Ford F150 issues depend on the year of the F150. The most common issues tend to be with the ignition coil, head gasket, spark plugs, and transmission malfunctions. Many of them are easy fixes but could cost lots of money.

Why is my Ford F150 making a noise?

Drivers have complained about a chattering sound in the rear part of the Ford F150, specifically the 1990-96 models. The noise occurs during soft turns in the vehicle after driving at high speeds. The problem came in an insufficient friction modifier or a faulty Traction-Lok differential.

What makes a Ford 4.9L engine not start?

Without spark, the engine will crank but not start. Ignition control module (ICM). Depending on the year of your specific Ford, it’ll have a inner-fender mounted ignition control module or a distributor mounted ignition control module.

Without spark, the engine will crank but not start. Ignition control module (ICM). Depending on the year of your specific Ford, it’ll have a inner-fender mounted ignition control module or a distributor mounted ignition control module.

The truck starts right back up every time. Once you get past the little hesitation she is smooth as silk. The TPS is new, the IAC valve is new and the MAF sensor is new. The temperature gauge doesn’t work the switch might be bad but I think the truck would run like crap all the time if that were the case…

What causes a Ford 6.9 diesel hard start to die?

Ford 6.9 7.3 diesel hard start cold stalls and dies. Fuel leak – YouTube If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations.

What is the rating of the cold start injector?

Average rating from 141 customers who received a Car is hard to start Inspection. The cold start injector, also referred to as the cold start valve, is an engine management component found on many road going vehicles.

What do you call the cold start valve?

The cold start injector, also referred to as the cold start valve, is an engine management component found on many road going vehicles.

Why is my Ford Ranger hard to start?

Truck hard to start when cold. Replaced aic valve mass air flow sensor and battery. Truck still stalls and lacks power. Engine begins to rough idle while stationary, at a light etc., but If the gas pedal is given a quick tap it will smooth out and continue to run, otherwise it will stall.

Is the starter OK on a Ford Ranger?

The starter is OK. A: This is certainly a frustrating problem, but it shouldn’t be too tough to fix if you’re willing to become part of the diagnostic team. By your description, it sounds like during a hot-soak restart the Ranger starter cranks fine, but the engine fails to start.

What kind of engine does Ford Ranger have?

TQ. Type of Engine 2.5cc model 2003 Ford Renger. Occasional high idle at startup turned into stalling at idle. It starts right back up but if it falls below 2K rpm, it sputters and stops. Will not idle when cold. After warming up for 2 minutes…all is well.

What does hot soak mean on Ford Ranger?

By your description, it sounds like during a hot-soak restart the Ranger starter cranks fine, but the engine fails to start. “Hot soak” refers to the elevated under-hood temperature that can occur during the first fifteen minutes or so after engine shut-off. Our three categories of concern will be:

I have an 86 Ford F150 , 302 EFI, Automatic. I have been working on this truck for a while and can not figure out why it cuts out on me. I thought I had it fixed and now it is back. I have replaced many parts, most recently the vacuum modulator because of fluid in the vacuum line. Please help me fix this.

Why does my Ford F150 engine not start?

Just recently we have had a problem with the idle. It won’t stay running, even when it warm up. We have to keep a little bit of gas on even at the lights and stop sign … read more 2000 F-150: 5.4. Engine starts then dies when you start it cold. 2000 F-150 5.4. Engine starts then dies when you start it cold. It will run if I touch the gas .

I have an 86 Ford F150 , 302 EFI, Automatic. I have been – CarGurus Please help. I have an 86 Ford F150 , 302 EFI, Automatic. I have been working on this truck for a while and can not figure out why it cuts out on me. I thought I had it fixed and now it is back.

Why does my Ford F150 not shift into gear?

Having a problem when I turn the truck on, step on the brake, and try to put it into gear, the lever won’t move, as if im not stepping on the brake. Eventually after messing with it for a while I can get it to shift into gear. Anyone had this issue and have any idea what it might be?

What’s the problem with my 87 Ford F150?

I had what sounds like the same problem you have (or hopefully had by this time) on my 87 f150 302 efi and the code reader said it was the map sensor. Changed it out and all ok. Also the vacuum line running from the map sensor to the manifold may be of the old plastic variety that has a tendency to crack.

I had what sounds like the same problem you have (or hopefully had by this time) on my 87 f150 302 efi and the code reader said it was the map sensor. Changed it out and all ok. Also the vacuum line running from the map sensor to the manifold may be of the old plastic variety that has a tendency to crack.

What causes a Ford F150 to shut down while driving?

The engine needs a strong ground to the chassis in order for your F150’s various electrical systems to work. If that cable is corroded, there could be problems such as misfiring, slow/no starts, or even the engine dying while driving. This is a common cause of many “gremlins”. 5. Bad Alternator

Why does my Ford F-150 keep cutting out?

Sounds like you have a faulty relay somewhere. It appears may be heating up after a minute or so, then cutting out. When you bypass the curcuit by running it directly from the battery you’re bypassing the problem oviously. Get a clinton or haynes book for the year which has a wiring relay/schematic section.

Why is my Ford F-150 engine not working?

For the record, Ford is the object of a Class Action Suit on these engines. However, there are some cures. If you go to your local Auto Store, a check for Codes will most likely find Oxygen Sensor failure-all 4 of them- and it will be accompanied by a loud clicking coming from the engine, as a result of the defective timing chain destroying itself.

The engine needs a strong ground to the chassis in order for your F150’s various electrical systems to work. If that cable is corroded, there could be problems such as misfiring, slow/no starts, or even the engine dying while driving. This is a common cause of many “gremlins”. 5. Bad Alternator

What’s the problem with the throttle on a Ford truck?

Electronic Throttle Body Malfunction Electronic throttle bodies have been a long-reported issue in Ford vehicles. In today’s Ford F-Series trucks, the electronic throttle body (ETB) is data-controlled. The ETB transmits sensory data to the throttle valve, which controls the quantity of air that passes to the engine.

Why are there so many problems with Ford trucks?

Since 2010, drivers have cited the feature as one of the main reasons for Ford’s declining ratings in user satisfaction. Early users of the touch-screen feature reported it would abruptly stop working. Moreover, the commands were variably unresponsive and the system did not synchronize with smartphones.

What happens when the starter fails on a Ford truck?

In certain instances of starter failure, the bendix will fail to retract fully, and the tip will grind against the teeth on the flywheel for a few seconds as the engine runs. Usually, this results in the flywheel knocking the bendix back into the starter body.

What causes a Ford truck to not turn over?

In some cases, the bendix can fail to eject, which prevents the starter from engaging the flywheel. When the ignition key is turned, the starter can be heard, but the engine will not turn over. This will require replacement of the starter.

Why does my truck engine bog down when I accelerate?

An expert who has achieved level 1. Most of the time when you drive your truck and get on it it bogs your engine light flashes and your a.c. also seems to get warm.then when you easy up on the gas it acts like it plays catch up. it was that i had about 2 to 4 bad coil pack on it then i replace them i had no more problems with it

What causes a car to start and then die?

But if there is a fuel leak somewhere, then the proper amount of fuel won’t be able to make it to the combustion chamber. This might cause the engine to still start, but it won’t be able to keep it running. That is why it will die almost immediately after it starts.

Why does my Ford F250 stall when driving down the road?

If this occurs in exactly the same place every time, it could be caused by radio interference. There are a number of other possible causes. Checking the easiest first, make sure the fuel filter is clear and unobstructed. check for any loose wires on the coils or any loose wires anywhere.If these prove negative, we will have to look further.

An expert who has achieved level 1. Most of the time when you drive your truck and get on it it bogs your engine light flashes and your a.c. also seems to get warm.then when you easy up on the gas it acts like it plays catch up. it was that i had about 2 to 4 bad coil pack on it then i replace them i had no more problems with it

But if there is a fuel leak somewhere, then the proper amount of fuel won’t be able to make it to the combustion chamber. This might cause the engine to still start, but it won’t be able to keep it running. That is why it will die almost immediately after it starts.

If this occurs in exactly the same place every time, it could be caused by radio interference. There are a number of other possible causes. Checking the easiest first, make sure the fuel filter is clear and unobstructed. check for any loose wires on the coils or any loose wires anywhere.If these prove negative, we will have to look further.

Why does my Ford F-150 hesitate to accelerate?

Seems To Skip But Feels Like A Shudder Have Replaced Plugs , #1 coil fuel filter trans And differentel speed sensors gas cap had a p0500 code and emission code Cannot get truck to accelerate smoothly. When I apply throttle it hesitates and stumbles. I tested mass air flow harness and I get 6.1 volts at PCM wire.

Why is my Ford F-150 going so slow?

Here’s a list of possible reasons why your engine may not be performing at its best. This article applies to the Ford F-150 (2004-2014). Imagine this scenario: Your driving along on a two lane road and you suddenly end up stuck behind a minivan that is going too slow.

A dirty throttle body can lead to stalling in your F150. If you let off of the gas coming to a stoplight and it stalls for a second or two and recovers itself, it very well could be a dirty throttle body that is causing the problem.

What causes engine hesitation and stumble problems on the 90 +?

Then it developed an intermittent hesitation problem- you would be cruising at 60mph, on a 400 mile trip, ease off the gas pedal, and suddenly for 1/4 second, it was as though someone had switched off the engine and then turned it back on again. The car would then run faultlessly for the rest of the trip.

What kind of CARB causes hesitation on acceleration?

I have an autolite 2100 that I got from Pony Carbs, put it on a 302 V8. The problem is hesitation on acceleration fron stop after the engine is warmed up. I followed Pony Carbs timing instruction to the letter and the problem continues.

Why does my car stall at high speed?

The engine can stall at high speed, at low speed, or even at idle. A faulty throttle position sensor will not let your car accelerate normally. Though this doesn’t happen all the time. You may experience slow acceleration, acceleration surge at both high and low speeds, hesitation or delay in acceleration, and other related symptoms.

Then it developed an intermittent hesitation problem- you would be cruising at 60mph, on a 400 mile trip, ease off the gas pedal, and suddenly for 1/4 second, it was as though someone had switched off the engine and then turned it back on again. The car would then run faultlessly for the rest of the trip.

What causes a slight hesitation on the fuel pump?

Changed out the fuel filters the one in the cup on the fuel pump was pretty dirty almost black and some sediment was in the bottom of the cup. put it all back together ant took it out, ran better but the slight hesitation was still there.

I have an autolite 2100 that I got from Pony Carbs, put it on a 302 V8. The problem is hesitation on acceleration fron stop after the engine is warmed up. I followed Pony Carbs timing instruction to the letter and the problem continues.

What kind of engine does a 1990 Ford F150 have?

1990 Ford F150 XLT Lariat 351 V8 5.8L engine starting/idling rough and backfires when given acceleration. Hesitates and loss of power while driving. Bought truck with 200K miles and now has 210K miles.

What to do when your F150 stalls at idle?

Reconnect the battery and start it w/o touching anything. Allow it to warm at idle and then move odle paramaters. Drive it around town a few miles and see if all is well. If not, there are some other things that

What was the horsepower of the Ford 351?

Throughout these early years of the 351, all versions were carbureted, but in 1987, Ford began phasing in fuel injected motors. Along with their new EFI, they began listing their engines by their size in liters, so the 351 became known as the 5.8L. There was still a carbureted 5.8L making 210 horsepower in 1987,…

What should the idle speed be on a 1996 F-150?

Engine running, check for leaks, nope, all looks good. On fast idle, thats Ok. Few seconds, and good, I hear it ease on down to normal idle. Playing some seeming “new” problem. When I tap the gas, 8 seconds, then eases down to normal idle of 700-800.

Is there a problem with my 1996 F-150?

Also watch a bolt hole the first go-arond. Start it up, and see what happens. Starts ok (still seemed to have that wide open throttle. Oh well, will deal with later. Engine running, check for leaks, nope, all looks good. On fast idle, thats Ok. Few seconds, and good, I hear it ease on down to normal idle. Playing some seeming “new” problem.

Can you remove the smog pump from a 1985 F150?

I am considering removing the smog pump and all associated parts and hoses on my 1985 F150 with 351W H.O. Engine. There is just too much stuff clogging the engine bay. First, how difficult of a project is this?

Why does my Ford F-150 Bogg before accelerating?

When you step on the gas halfway to the floor or more it Boggs way down before accelerating. I have replaced all 8 coils all 8 spark plugs fuel filter both evap valves and the fuel pump control module and cleaned the mass airflow sensor and dumped fuel system cleaner in the tank.

Can a plugged fuel filter cause a fuel pump to fail?

These symptoms can also occur with a plugged fuel filter, failing fuel pump, or faulty PCM. In the event you have these symptoms, it is best to have the entire fuel system inspected by a qualified Ford fuel system technician.

Can a poor fuel pressure regulator cause a Ford to stall?

A poor fuel pressure regulator can also cause your Ford to stall while idling or driving. While it will most likely occur while idling, it is not unheard of for the car to stall while you are driving down the road.

Why does my Ford F150 shake when I push the gas?

It can appear as a vibrating or shuddering sensation that becomes increasingly noticeable when you press on the gas pedal. This is going to be very concerning for anybody, but the good news is that most of the time, if your ford f150 shudders on acceleration, you can fix it.

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Ruth Doyle