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Why does my Ford F-150 rev up and down?

Why does my Ford F-150 rev up and down?

It starts normally and after a while the revolutions go up and down until it stabilizes again. Like 20 minutes afterwards it starts doing the same until it shuts off. The throttle body was cleaned, the spark plugs and cables were changed, but it does the same until shutting off. Problems with a F-150? Share them

What are the RPMs on a Ford F-150?

First start after sitting overnight. Rpms go up the down right away to about 300 then back up to about 900. Put truck in reverse and truck stalls out. This does not occur every time. Does the same when I put in drive

When do you start the car, the engine revs?

Car engine revs way up immediately upon starting engine. Q: Car engine revs way up immediately upon starting engine. When starting the engine, it sounds like you have your foot pressed to the floor on the gas pedal as soon as you start it, without even having your foot on the gas.

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

With the scanner it showed errors P0755, P1747 and P0743, I was told it might be the gas pump, but the failure continues. 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.

It starts normally and after a while the revolutions go up and down until it stabilizes again. Like 20 minutes afterwards it starts doing the same until it shuts off. The throttle body was cleaned, the spark plugs and cables were changed, but it does the same until shutting off. Problems with a F-150? Share them

First start after sitting overnight. Rpms go up the down right away to about 300 then back up to about 900. Put truck in reverse and truck stalls out. This does not occur every time. Does the same when I put in drive

Car engine revs way up immediately upon starting engine. Q: Car engine revs way up immediately upon starting engine. When starting the engine, it sounds like you have your foot pressed to the floor on the gas pedal as soon as you start it, without even having your foot on the gas.

With the scanner it showed errors P0755, P1747 and P0743, I was told it might be the gas pump, but the failure continues. 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.

Can a 2010 Ford F-150 engine shut off without warning?

See all problems of the 2010 Ford F-150 . Engine goes into limp mode on the road, street or highway with no warning. Engine shuts down. Dealer installed new throttle body for the third time!. My 2015 f150 with 100,700 miles on it completely stalled on me while pulling into traffic.

What causes acceleration loss in 2005 Ford F-150?

Remove and clean the throttle body. My 2005 F-150 started doing it again last night. It’s intermittent at first then more often until you clean the throttle body. Hope this helps! Acceleration loss Oil Spark plugs Fuel pump Fuel filter Air flow sensor …

Why does my Ford F-150 shift hard at 1600 rpm?

94 f150 idles fine until warmed up then idle goes up to 1600 rpms and won’t idle down causes tranny to shift hard and shifts down constantly like I’m passing.

Why is my 2003 Ford F-150 not starting?

There are a number of issues that can go wrong with starting system and make your 2003 Ford F-150 car won’t start or hard time to start – This article guides you through some of the facts behind the starting system, and the components that may be to blame, and tells you what action you can take to try to remedy each situation.

What to do if your Ford F-150 cranks but not starts?

Question type: Maintenance & Repair STARTING PROBLEM I have a 2000 ford f150 5.4L the truck cranks but will not start some times. if i spray starter fliud into the booster in will start up. but other times the truck will start then just idle off.

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 many times has Ford Expedition engine shut down?

This relay has been replaced twice in our 2003 Ford Expedition. We were on the interstate when our vehicle shut down completely and had hard time maneuvering it. Vehicle would turn on and off.

Is there a 1989 Ford F-150 idle problem?

– YouTube 1989 Ford F-150 IDLE PROBLEM FOUND!! 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. To avoid this, cancel and sign in to YouTube on your computer. An error occurred while retrieving sharing information.

What kind of problems do I have with my Ford F-150?

It’s this task that 12 th -gen F-150 head gaskets struggled with. After driving 160,000 miles or so, F-150 owners would start to smell burnt oil. Oil had begun leaking into the engine and onto the starter from the passenger side.

Why does my Ford F150 not shift to 3rd?

If the sensor is bad I’ve heard this is a symtom (not shifting out of second). After doing A LOT of reading about the 4R70W transmission. Not shifting to 3rd could be caused by a bad SSB (SS2) solenoid. I lost 3rd and OD suddenly with a bad direct clutch I would have noticed some slipping in 3rd or OD before hand.

Why does my Ford F-150 have rough idle?

The rough idle wasn’t due to the turbocharged EcoBoost engine—that didn’t come until 2011. What happened was the exhaust gas recirculation sensors were getting sticky. Carbon from the engine was accumulating on the sensors and clogging them. Although diesel engines are usually the ones that make more soot, it can happen in gasoline trucks, too.

It’s this task that 12 th -gen F-150 head gaskets struggled with. After driving 160,000 miles or so, F-150 owners would start to smell burnt oil. Oil had begun leaking into the engine and onto the starter from the passenger side.

94 f150 idles fine until warmed up then idle goes up to 1600 rpms and won’t idle down causes tranny to shift hard and shifts down constantly like I’m passing.

When did the Ford F-150 start to idle?

Raybuck Auto Body Parts warns that 12 th -gen F-150s (2009-2014) often start to run and idle roughly. This was particularly problematic for the 2010 model year, which is on our list of F-150 model years to avoid. The rough idle wasn’t due to the turbocharged EcoBoost engine—that didn’t come until 2011.

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.

Why does my Ford F-150 rev up when I put it in neutral?

When I put the truck in neutral then Rev up the engine and pit it in drive it runs fine until I slow down again then it does the same thing. The garage changed the cam sensors but that didn’t correct the problem. They suggest increasing the velocity of engine oil and or putting synthetic in to increase the oil pressure. Any thoughts?

Why does my Ford F-150 run at high idle RPMs?

High idle rpms please help!!! screw and got it down to about 1,100 rpm. I unplugged the IAC and the truck runs when i let go of the gas pedal the rpms are still up and the truck goes by itself. doesn’t seem to be any vacuum hoes leaks.

Is there a problem with my 1989 Ford F-150?

1989 Ford F-150 IDLE PROBLEM FOUND!! – YouTube 1989 Ford F-150 IDLE PROBLEM FOUND!! 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 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.

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Ruth Doyle