Libbey stalls after warm up

[dogginred90]

I have a 2002 Libby with a 3.7. When it gets cold out( around 45 and below) when I come to my first warm up stop, the engine stalls. No codes and it starts right back up and runs perfectly fine for the rest of the day. I am confused and need help. Thanks guys

 

[M38 Bob]

Move south!:happy175:

Bob

 

[LibertyTC]

^ ha ha
Does engine light come on? Or any codes?
Spark plugs replaced recently? Gaps could be way out, see under hood sticker for recommendations of NGK's and .040 gap.
Also if the rpm does drop low enough causing a stall, the IAC could be the culprit.
Time for cleaning the carbon away from IAC & associated port, even include throttle body.
Edit: I tried to find in the owners manual any recommended warm up time before driving off, unsuccessfully.
I do allow my jeep to warm up for about 3 minutes before driving off or more if below freezing.
Before driving off, I like to see 135F on my OBD Autel display reader, which is gauge coolant temp around 1/4.
If you let your jeep warm for 3 minutes before driving off, does it still stall?

 

[Birdman330]

^ ha ha
Does engine light come on? Or any codes?
Spark plugs replaced recently? Gaps could be way out, see under hood sticker for recommendations of NGK's and .040 gap.
Also if the rpm does drop low enough causing a stall, the IAC could be the culprit.
Time for cleaning the carbon away from IAC & associated port, even include throttle body.
Edit: I tried to find in the owners manual any recommended warm up time before driving off, unsuccessfully.
I do allow my jeep to warm up for about 3 minutes before driving off or more if below freezing.
Before driving off, I like to see 135F on my OBD Autel display reader, which is gauge coolant temp around 1/4.
If you let your jeep warm for 3 minutes before driving off, does it still stall?

You'll simply find a 50/50 on warm up. I've read enough articles that state warming up an engine is pointless due to new technologies to that you should do it only at temps below zero to prevent engine damage and then articles that state you should always warm up your engine before you drive it. If its freezing out, five minute warm up, zero degrees a ten minute warm up, below zero a 15 minutes, and when the polar vortex hits, half an hour warm up. Might be a little excessive but I don't trust metal and super cold weather.

 

[CzarKJ]

You'll simply find a 50/50 on warm up. I've read enough articles that state warming up an engine is pointless due to new technologies to that you should do it only at temps below zero to prevent engine damage and then articles that state you should always warm up your engine before you drive it. If its freezing out, five minute warm up, zero degrees a ten minute warm up, below zero a 15 minutes, and when the polar vortex hits, half an hour warm up. Might be a little excessive but I don't trust metal and super cold weather.

I agree with the warmup when it gets real cold. It's why I got a block heater. When it's been in the negatives it makes a world of difference.

 

[dogginred90]

No codes what so ever comes on. I have cleaned the throttle body with no help. It does jump around before it stalls, but it's right as I am coming to a stop. Spark plugs are gapped correct and recent replaced. I am confused as all hell

 

[libertybob]

Shhh!

Move south!:happy175:

Bob

Quiet Bob. Hard to find a native Georgian as it is.

 

[M38 Bob]

Quiet Bob. Hard to find a native Georgian as it is.

Parts (the best ones) of AR are that way also.

Bob

 

[LibertyTC]

No codes what so ever comes on. I have cleaned the throttle body with no help. It does jump around before it stalls, but it's right as I am coming to a stop. Spark plugs are gapped correct and recent replaced. I am confused as all hell

What about the IAC? Did u clean it? It controls the idle.
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