Question about Cars & Trucks
is this factory air? id bet not but , is it?
most factory air this old is DOA> (hopeless cases)
most ECUs have an idle up pin, if you look at the schematic.
see it? and goes to A>C on , power line just after A/C on switch
the fan must be on , then switch closed and this cause A/C to idle
up. but in 89 some have other ways.
did you look here.
Posted on Oct 16, 2013
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Posted on Jan 02, 2017
Your intake manifold has a leak. Check all the hose connections to see if you have a hose off.
Disconnect the EGR hose and temporarily plug. If it helps it is the EGR.
Take a spray bottle of water and spray around the intake manifold while the engine is running. When you find the leak it will draw in the water and stall the engine or at least affect idle.
Another part is the TPS, throttle position sensor which is on the drivers side and about the size of a cigarette lighter. It has 2 screws and 1 electric plug.
Have Autozone scan your truck for free.
Posted on Sep 18, 2009
Idle speed control may be bad. If replacing yourself you must give it a learning code. This is performed by after installing it you would run the engine at 1200 RPM's in gear with the parking brake on and your foot on the brake for 5 minutes. This way the computer will code the new Idle speed control you had installed
Posted on Jan 14, 2010
Dipstick, oil filler , filter etc are under the passengers front seat.
If you lift the carpet immediately in front of the seat, you will see a pair of clips holding down the seat, unlatch them and lift the seat ( in some models they hide a clip in the centre console).
The brake fluid is under a cover in the dash.
Posted on Mar 27, 2010
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