idle problems in texas

[big charlie]

i have a 94 suburnban 4x4,5.7l engine.it seems the idle drops when i turn on the accessories,lights ,a/c.i have rebuilt the t.b.i cause it was leaking.a complete tune up and oil change...any advisere would be greatly appreciated.and no check engine light.

 

[ferretx9]

Have you checked the alternator ?

 

[Molson02536]

i have a 94 suburnban 4x4,5.7l engine.it seems the idle drops when i turn on the accessories,lights ,a/c.i have rebuilt the t.b.i cause it was leaking.a complete tune up and oil change...any advisere would be greatly appreciated.and no check engine light.

Recheck your IAC (Idle Air Control) valve to make sure it's working and not binding.

Post back and be safe.