The engine of a Chevy Trailblazer may begin shaking when idle if there is insufficient fuel reaching it. This can be caused by a clogged fuel filter or dirty fuel injectors.
700 RPM
Anything above 5 psi at idle will lubricate your engine. There is no maxim oil pressure for a 2003 Chevy Trailblazer. When the engine is cold and the oil is thick you should see 60 to 80 psi.
This is a electronic fuel enjected engine and therefore the electonics set the engine idle speed a bit higher during a cold start so the engine will not stall out.
It sounds like your fan clutch is bad.
If it is an automatic, the fluid should be at operating temperature. The transmission in park and the engine at idle. Remove the dipstick and wipe it dry and check the level. Do not overfill.
Check the motor mounts.
800 rpms.
The idle speed on a 1987 Chevy Celebrity is controlled by the engine computer, there is no way provided to adjust it.
it controls idling of car engine, without it it will not idle..
When a clutch fan is always engaged, it could mean that the clutch is no longer working properly and needs to be replaced. If a clutch wears out, then it will make?æthe engine to run hot when idle.
Possibly just an adjustment on the rockers. Hydraulic system. Hopefully that's it.
The idle is control by the idle air control motor from outputs from the Engine Control Module.