idle problem

[miksamak8716]

i have 95 full size bronco . today i was flushing out the radiator and i guess water splashed over a sensor some where . the engine light comes on and goes off. the idle goes up to 1500 or so then drops to almost a stall .sometimes it does stall . the trans feels like it does not know what to do when taking off sometimes it is really running like crap . i sprsyed the wirs with wd40 still runs like crap . please help

 

[bledsian]

I'm having the exact same problem. Except I never spilled anything. But it does this whenever I take it through the car wash (and not cleaning the engine) and also when it's raining. But it seems that once the engine is fully warmed up it goes back to running properly.

 

[MississippiSlim]

I'm having the exact same problem. Except I never spilled anything. But it does this whenever I take it through the car wash (and not cleaning the engine) and also when it's raining. But it seems that once the engine is fully warmed up it goes back to running properly.

Cracked distributor cap??

 

[ibionika]

I think maybe there is a connection problem at the sensor, or possibly a broken wire at the connector. It idled fine until you let it cool down? what happens if you just clear the codes without doing anything and start it up? does it idle fine until you do another restart?

it might be a good idea to check the terminals real close at the connector.

 

[RBuffordTJ]

I had the same problem with a ford van I own, I washed it and suddenly it would stumble and have a fit trying to idle.

The coil pack on mine had stress cracks all over the silly thing when I pulled it out and looked at it, but it was fine until it got any moisture on it. Check your ignition components, coil, distributor cap, coil packs (if they have it) and even your wires. Sometimes the wires will go bad and you have no idea, try running it in the dark and look for a spark light show on the wires.

Rick in Orlando

 

[mightymo826]

i have been driving a 90 full size bronco for about 2 years now and it has always had that problem. it usually does it when the engine is cold, but i have also had it stall at a stoplight after its had the time to warm up. im starting to feel it when im driving around too. i tried to tell my dad that it needs a tune up, but for some reason he doesnt think thats causing it, any suggestions?

 

[RBuffordTJ]

i have been driving a 90 full size bronco for about 2 years now and it has always had that problem. it usually does it when the engine is cold, but i have also had it stall at a stoplight after its had the time to warm up. im starting to feel it when im driving around too. i tried to tell my dad that it needs a tune up, but for some reason he doesnt think thats causing it, any suggestions?

Well if he doesn't look he will never find the problem, so it is a process of elimination. You check till you find.

 

[Justshootme84]

i have been driving a 90 full size bronco for about 2 years now and it has always had that problem. it usually does it when the engine is cold, but i have also had it stall at a stoplight after its had the time to warm up. im starting to feel it when im driving around too. i tried to tell my dad that it needs a tune up, but for some reason he doesnt think thats causing it, any suggestions?

Read Steve83's post and go to the link to check for codes.

 

[joshpmoorman]

i have been driving a 90 full size bronco for about 2 years now and it has always had that problem. it usually does it when the engine is cold, but i have also had it stall at a stoplight after its had the time to warm up. im starting to feel it when im driving around too. i tried to tell my dad that it needs a tune up, but for some reason he doesnt think thats causing it, any suggestions?

I have an 89 Bronco and had the same problem, then go a full tune up and it got better, but it could have also been b/c I replaced the distirbuter cap at the same time.