Engine stumble..??

[EVoos]

I have experienced on occassion in my '05 some engine stumble at low rpm's with the automatic transmission in drive. . Is this normal??

 

[rbattelle]

When this happens is the A/C on?



-Ryan

 

[EVoos]

I would say most likely. . hasn't been cold enought to turn it off

 

[rbattelle]

Are you sure it's a stumble? I notice with mine sometimes while I'm sitting at a stop in neutral when the A/C clutch kicks on I get a little "bump" (for lack of a better word) that I can feel through the floorboards. Only occassionally, and it can be confused with a stumble if you don't know what it is...



-Ryan

 

[KKlepfer]

I can feel the same bump when the ac clutch turns on. More noticable in drive than in nuetral though.

 

[EVoos]

This is most definitely a stumble. . it's only happened maybe two or three times. . the most noticable was going uphill at low RPM's at about 7500 feet elevation. .

 

[rbattelle]

Well, we've reached the limit of my ideas! It's going to be really tough to diagnose unless the ECM catches it in the act and trips a code...



-Ryan

 

[EVoos]

Well, I guess I'll keep my eye out for it happening again and have a talk with the dealer if it does...

 

[nickleinonen]

what rpm does the stumble occur?