idle problem?

[kickitandholdit]

Hey my tahoe today was idling strange. It would move up and down maby 100rpms or so. while driving it would run fine even if i got down on it but when the rpms dropped it would go too far dawn and then come back up. any suggestions? thanks in advanced.

 

[crmzendrgone]

What year engine, etc.

Could be fuel pressure issue. Maybe clogged fuel filter. weak fuel pump.
not sure until the specifics are known.

 

[Thumper8302]

maybe IAC? kinda having the same issues as u..... does ur idle drop below 500rpms when u come to a stop light or sign?

 

[kickitandholdit]

What year engine, etc.

Could be fuel pressure issue. Maybe clogged fuel filter. weak fuel pump.
not sure until the specifics are known.

its an 03

---------- Post added at 11:24 PM ---------- Previous post was at 11:05 PM ----------

maybe IAC? kinda having the same issues as u..... does ur idle drop below 500rpms when u come to a stop light or sign?

yea it does drop below 500 when i come to a stop or something. i figured it was something weird like that considering it acted fine when i accelerated hard.

 

[Thumper8302]

sounds like u and i are goin to go the same route this weekend.. i posted a thread called iac help.... im gonna be attempting the cleaning this weekend.. ill be posting pics of the process

 

[Rivieraracing]

Just clean out the throttle body real real good, should solve your idle problem!