Why is my 1979 Ford F-100 hard to start?

38 people found this helpful. My 1979 F-100 300 cu. in. 6 cyl. would be very hard to start at times and would often die while driving down the road (and would start back up while still rolling) I replaced the fuel pump that is on the side of the engine-no help (but solved an oil leak as it was loose).

Why are my turn signal lights not working?

Check for damaged or burned-out bulbs in all turn signals on that side. Alternately, the ground on either light could have gotten damaged or come loose. Corrosion in one of the bulb sockets causing bad contacts is another possible cause.

What should I do before changing the voltage on my Generator?

As Memmolo suggested, prior to doing anything else, make sure the generator is working properly and check the condition of the battery. It would be a good idea to check the wiring between the generator, voltage regulator, and the battery as well. The generator should be “polarized” before testing, and after a new voltage regulator is installed.

What kind of generator does a GM truck use?

By the end of 1962, Delco generators were gone from GM except in industrial, farm and marine applications. A good old fashioned 12 volt, 35 amp Delco Generator. We suspected a bad voltage regulator in our vintage truck, because the engine would continue to run when we turned the ignition to the off position.

What to do when your generator light does not come on?

If the light does not come on, then reattach the negative battery cable and move on to checking the voltage output check. If the test light comes on, there’s a short in the electrical system. You must first find out where that short/drain is coming from before we can check out charging system.

Where is the generator light on a 1967 Ghia?

On a 12V car (1967 and on) it’s usually under the rear seat off to the left. In Ghia’s, I think the regulator is in the engine compartment and I believe that’s the same with the Bus. Anyway, check and make sure that the wires are on good and tight and not burned or damaged. Replace any wire.connector that looks bad. Battery.

What causes the generator light to come on in a Speedo?

If you suspect that the battery has a bad cell or two, you can buy a hydrometer from any FLAPS. This simple device checks the specific gravity of the battery electrolyte in each cell. A bad cell can cause the generator/alternator to overcharge the other cells which will trigger the generator light in the speedo.

What happens if a generator goes wonky in the alternator?

A generator that’s gone wonky can damage or weaken the regulator which may come back to haunt you later down the road. In the alternator, you can’t do this trick as the brushes are built into the internal regulator and they both get replaced as a single unit.

Can a bad solenoid cause a car to not start?

If the starter engages but does not disengage when you let go of the key, the solenoid is likely bad and the starter may suffer significant damage as a result. 6. Sometimes your car starts, sometimes it doesn’t. Intermittent operation can be a sign of a failing starter solenoid. Other issues that present a bad solenoid

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.

Where is the starter solenoid located on a car?

Most often, a true starter relay is a small black cube plugged into an electrical fuse/relay box in the engine compartment, whereas a starter solenoid is (in most cases) attached directly to the starter on the engine (although it is sometimes located elsewhere in the engine compartment). Signs of a bad starter solenoid

Can a weak solenoid cause a car to not start?

Although rare, a weak solenoid can allow the starter to spin without engaging the engine’s flywheel or flexplate. In such a scenario, you’ll hear the starter spinning, but the engine won’t crank. It’s possible for high resistance in the starter solenoid to cause the contacts to burn.

What to do if your solenoid reads out of limits?

Connect one meter lead to the solenoid’s ‘S’ terminal (the terminal that receives power from the ignition switch). Connect the other meter lead to the solenoid’s ‘M’ terminal. If your meter reads out of limits (OL), the solenoid is faulty and should be replaced.

Why does my Ford starter keep running even after I Turn Off the engine?

Some Ford owners encounter a situation where the starter run continuously or keeps running even after the engine has started and even after they’ve removed the key from the ignition. At first, this may make you think the starter drive is binding. Or you may think you have a bad starter relay.

Where is the solenoid located on a car starter?

Most starter solenoids are mounted directly on top of the starter. When you start your car, electrical current from the battery travels through the starting circuit (relay, etc.) to the starter solenoid. When energized, a set of windings inside the solenoid force a plunger and shift fork to engage the starter motor’s drive assembly.

Why does my Ford truck not start when the engine is warm?

If not starting means that it would turn over but not fire, the TFI module is a likely culprit. The TFI modules are famous for causing this problem and there have been lawsuits filed against Ford for this very problem. They get hot and quit working correctly.

What to do when your Ford truck wont start?

Get a spray water bottle, and wet the starter motor down when its hot and wont start, if it fires up, then you have an answer, or always carry the bottle full of water, worked for my brother till he bought a high temp starter, and insulated it as well. I would check the battery.

Why does my 1990 Ford F150 not start?

83 people found this helpful. Ok I have a 1990 ford f150 300 6cylinder iv replaced starter solenoid coil and still not wanting to start don’t seem to be getting fire what could be the problem any suggestion from any one here I really like this ole truck and I will do what ever it takes to get her back on the road plz help me

Why does my Dodge Ram run till warmed up?

When starting truck cold, it runs perfect. After truck warms up starts to idle bad, and also starts making a loud suction noise like a vacuum leak. There’s no vacuum leak ,the noise comes from the throttle body. If I turn off the truck and turn back on , it starts up fine till 5 min. later when it starts all over again.

What makes a car run bad in the 79’s?

Most ’79 cars run pretty lousy as they age, so could be a lot of things. Most common problems would suggest a vacuum leak in hoses, intake manifold or carb base plate. Also the EGR valve is suspect, and the carburator itself. With so few miles, lots of things can get gummed up, and gaskets can shrink and leak as well.

What happens if the Ford F-150 sits for a week?

After about the fifth time, and the involvement of a ford engineer, I thought they had the problem fixed (replaced a wiring harnes). That is until about 2 months later. The truck sat over night and was dead the next morning. Took it to dealer again, and they replaced the battery. Went about a week and a half without any problems.

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.

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 .

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 F-100 run like crap?

The truck ran fine on the way down then started running like crap That’s when i replaced the timing chain and plugs, ran good for a week then just stalled one night took and hour trip to get home instead of the normal ten minutes. Notice i was getting fuel, do to a clogged fuel filter.

How long does a Ford F-100 truck run?

Have that off one notch and it will still be able ti time it but will have to turn distributor all the way one way or the other, too advanced or retarded also Luis it happens all the time that guys say pvc, it’s a much more common acronym for pipe I do it too, PCV Positive Crankcase Ventilation ….and just another shot of chain

Is there a Kill Switch on a 1973 Ford F-100?

Need to run a bypass wire from firewall under hood to dash area. On my Mustang they also put it on a kill switch. This didn’t happen like your cars did. if you read the posting, This happen to a 1973 Ford pickup truck with a 390 engine which was NEVER fuel-Injected.

How many cylinders are in a Ford F-100?

73 f100390 c.i; Replaced timing chain,distributor,plugs, new cap, pertronix ignitor, fuel filter, gas tank, Compression is 120 7 cylinders 140 on 1. Checked and adjusted floats and cleaned, carburator! I want to see a picture of your bald dome and wide open smile.

Why does my Ford F-150 not keep running?

Sounds like you’re fuel filter is not let enough fuel to get past to keep the vehicle running and it is running out of fuel than it set for awhile fuel fill the lines and you can start it again until the line empties again. 59 people found this helpful.

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.

Why does my Ford F-150 not start?

105 people found this helpful. ok it will start the first when cold run about a minute or less and smothers out like it ran out of fuel,try to restart it and u can hear the pump motor just for a split second and wont start keep cranking no start. I can wait about ten minutes and it will start fine and then kills out almost a minute.

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.

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’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.

How many miles does a 1989 Ford F150 have?

1989 Ford F150 4X4 With Only 1 Owner Since New. Wow dont pass this up. Clean Truck with just under 90K miles. Everything Works on This Truck and Drives Like Dream. AC Works Great also for the hot d… More Info ›

What causes an uneven idle on an F-150?

A uneven idle on a F-150 can be a symptom of a variety of engine issues such as vacuum leaks, failed or dirty sensors or worn engine components. If the engine is older or has higher miles on it, the typical culprits will be dirty sensors and carbon deposits on engine head components.

Why is my 1979 Ford F-100 hard to start?