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1989 GMC Sierra Questions & Answers
I have an 89 GMC
changing the transmission is not an option as it is working good
the problem will be an actuator or servo/solenoid
take it to an auto transmission specialist professional and have it properly diagnosed
I have a 1989 gmc
Are you sure that it is getting gas, you can take a gas can and pour a small amount down the throttle body (just a teaspoon or less) and see if it starts to run while turning it over. Becareful with the air cleaner off you could get a back fire (fire!) so only use a small amount of gas and have a fire extinguisher near in case you get a flame up. Could be the distributor if it is loose (as it became in my 1988) the distributor hold down fork became bent from over tightening the bolt and it would not stay in position. You will have to slowly turn it if it moved (or use a timing light) to adjust it till it will run there is a connector near the brake booster that needs to be disconnected to properly set the timing.
89 GMC Sierra, was runnig
Is the EFI spraying gas or dripping gas by anychance. I blowed a o-ring at the base of the injector on mine and did that to me.
My brake pedal will not budge, and a hissing noise present when running
The stop lights won't go out until the pedal is depressed, as there is a switch which is activated by the pedal.
A hard brake pedal is probably caused by a defective servo. The hissing noise is probably an air leak in the servo.
Switch the engine on, open the bonnet (the hood..) and see if you can locate the hissing - that'll probably be in the brake servo area.
If you don't know what a brake servo looks like here is a generic image:
How do I change a headlight bulb on my 1989 GMC
most likely you'll see the bulb socket protruding in the back of the headlight, gently grab it and turn slightly to left or right, there three tabs on the base that line up w/ 3 holes and the light assembly will slip out....don't be afraid to discuss this with the guys or gals at the autoparts house- they love to give out advice.....hope i've helped in some manner...pappy
Will 1989 gmc 5.7l transmission fits on my 1992
it should.......but a transmission shop will need to verfiy it. Get the trans pan off and check the condition, (excessive metal in th epan) and replace the filter while its out. Have a trans shop check it, you dont want to put in a bad trans.
I need to know what
Muncie 4 (117MM) speed---Lubricant Type---------80W-90 Gear Oil
Muncie 5LM60 (HM-290) 4 & 5 Speed ---------Lubricant Type------Syncromesh Trans Fluid T2850
Oil Capacity= 5 Speed (85mm & 109mm)--3.6 pt (US)
(New Venture Gear 4500)--8pt (US)
4 Speed= (85mm)--3.6pt (US)
(117mm)--8.4pt (US)
Hope this helped you ??
My 1989 gmc serra the head lights don't light the road to well is there something I can do ? different type of bulb
dull head lights cab be from several things
1-bad reflectors behind the bulbs --any yellowing, rusting or dull reflector surfaces -- replace head light assemblies
2 badly aligned head lights-- beams shining off into space instead of on the road. --- have an alignment done on the lights
3 wet roads do not reflect head lights properly so it appears that the lights are not working well--- not much to do. the light reflects forward of the wet surface and not back to the driver
4 only one head light or no main beams and running on low beams only--- check light operation and check light control module for operation
Starts fine then loads up and wont take fuel
hook to scanner look at the coolant temp sensor data if it is reading colder than it is outside like example if it's reading -36 degrees its causing the computer to dump in way to much fuel .. if this is the case replace sensor and it should be fine
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