Stalling when cold, stumble on accelation
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Joined: Aug 2005
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Stalling when cold, stumble on accelation
I just picked up an 89 F150 with a 5.0L V8 with about 160K miles on it.
I'm having a couple of problems that I think are probably all related and hopefully easy to fix
When the truck is cold, and I start it, I have to give it a decent amount of throttle to keep it running. The engine will try to die, then rev back up, and try to die again for a few minutes until it warms up...then it idles fine. The other problem I'm having is that when starting out from a stop, frequently when i press the throttle, the engine bogs down for a couple of seconds, creeping forward, and then it goes fine.
I tried pulling the codes, and I got two code 23s in the KOEO test, and either 111 or 1111 in the continuous codes section. When I attempt to do the engine running tests (after the truck is good and warmed up, and idling happily), right as it starts to flash the engine ID code, the engine stalls every time.
Any direction would be greatly appreciated.
Thanks,
Josh
I'm having a couple of problems that I think are probably all related and hopefully easy to fix
When the truck is cold, and I start it, I have to give it a decent amount of throttle to keep it running. The engine will try to die, then rev back up, and try to die again for a few minutes until it warms up...then it idles fine. The other problem I'm having is that when starting out from a stop, frequently when i press the throttle, the engine bogs down for a couple of seconds, creeping forward, and then it goes fine. I tried pulling the codes, and I got two code 23s in the KOEO test, and either 111 or 1111 in the continuous codes section. When I attempt to do the engine running tests (after the truck is good and warmed up, and idling happily), right as it starts to flash the engine ID code, the engine stalls every time.
Any direction would be greatly appreciated.
Thanks,
Josh
Postmaster
Joined: Jul 2005
Posts: 3,956
Likes: 6
From: Abilene, Texas
have you checked the spark plugs. I would start with a good tune up, just because you never know what the previous owner has done. I would change the plugs, the plug wires, fuel filter, pcv, distributer cap, and distributer rotor. gl scotty
Senior User
Joined: Apr 2005
Posts: 101
Likes: 1
From: Columbia,S.C.
code 23 is the throttle position sens. and they do wear out ,you might want to test the IAC valve for build up on the plunger after you do the plug,wire,cap, ect. ,if it still gives you problems
