Re: 2002 f250 v10 engine quits after warm up at idle...
Hey...had an \'01 Grand Prix,gave me such a hard time,would b driving n it would just shut off! Ended up fixing it by replacing the "fuel pressure regulator"my old one didn\'t leak,that we could see anyway. Tried O2 Sensor MAF Sensor,checked pressure in fuel pump,it was good. Was getting ready to buy the computer n my mechanic says lets try this. And it was the Fuel Pressure Regulator...thanks Jake(my mechanic)
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Re: 2002 f250 v10 engine quits after warm up at idle...
DTC = P0720
footnote b = MIL (malfunction indicator light) comes on after 2nd occurance
footnote c = tranny control indicator light (TCIL) flashes
circuit = OSS = output shaft speed sensor in the tranny (not the variable speed sensor (VSS) in the diff).
condition = OSS sensor circuit malfunction
probable causes = Short/open circuit, sensor, PCM
My guess? Replacing the OSS will take care of it. I hope you don't have a faulty PCM.
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iFixitwhat would cause my car to turn off while driving & what cause it to start with ... Before you do these, you may consider doing a quick check of your battery terminals. ... So changing out the ignition control module is not a one fix for life job. ... and all thesudden the check engine light would come on and the car would die.
Oct 1, 2008 - Replacing a perfectly good ISC motor or solenoid won't fix the ... If the engine stalls while idling or driving, the engine may be running ... The engine may startand idle fine, but run out of power or even stall at highway speeds. ... If the engine is running normally one minute, but suddenly quits, .... Then dies.
If this is happening when you foot is off the throttle, try this...........
First eliminate all vacuum or air leaks in the system (very important)
. You may have a bad IAC ( idle air control) but try cleaning the throttle body first. Remove the intake snorkel, have someone hold the throttle wide open for you and scrub the back side of the throttle plate and surrounding bore with an old tooth brush and some carb cleaner. Be sure to spray some into the small holes next to the throttle plate. That should help stabilize the idle. If it still has a problem, replace the IAC.
I would start with cleaning the throttle bore and plate. Then clean the Idle Air Control valve, IAC, as this is the device that controls idle speed. Use a can of spray carb cleaner and an old toothbrush. Trouble with the IAC would make sense if you can keep the engine going by holding down the gas pedal a bit.
Use the carb cleaner to check for vacuum leaks at hose connections and elbows. run engine and spray short bursts at hoses and listen for idle speed changes.
And lastly if problem is still there check MAP sensor.
Sounds like not all the glow plugs are working.It should run fairly smooth on a cold start if all of the glow plugs are working..Also you shouldn't drive off on a cold start with a diesel,Its really hard on the motors..At least give them 10 to 15 min on a cold start..The oil in them is a really thick oil and when there drove on a cold start theres no oil lubricating the internal parts and will cause the motor to seize up..You may already no this and dont mean you drive it as soon as you start it i just wanted to let you know..When you get alot of white smoke it could be two things,Theres water in the fuel which will make it not have much power die and smoke..But if it runs fine when its warm theres some bad glow plugs...Hope this helps you and have a great day
You can try several things. I am going to say it is probably the TPS-Throttle Position Sensor. This is located on the airhorn and usually on the drivers side. The butterfly shaft connects to the TPS and the TPS is held on by 2 screws and has 1 electric connector. If this cures your problem you are okay, however if you still want more RPM, the opposite side of the butterfly flap has a set hex screw which will allow more RPM like a carb.
There is usually an elongnated slot on the TPS which can be slightly adjusted to help.
You can get a free scan at Autozone or Oreillys and see if anything coded.
I really think it's the TPS, (throttle positioning sensor) on the throttle body. When this sensor is defective or out of position the vehicle will idle like that and even stall. If you haven't had it scanned, you should do so, that will probably tell you the problem.
Well alot of people tend to think that just because they have a vehicle that is new or within 10 yrs of new...that they can get in it and strart up and just take off...well...the truth is and especially in Winter months is that you have to warm up your vehicle till the water tempature gets to where it needs to be ...warmed up.....in order for all the systems in your vehicle to work properley.....so Warm up your vehicle everyday before you drive it....don't just hop in and take off......This is my solution to this problem, especially if it is a seasonal..problem.....Sincerely, Mike