20 Most Recent 1990 GMC Safari Questions & Answers

7 quarts.but i would get 3extra quarts.to be on safe side case you need to add some

The 1999 GMC Safari automatic transmission requires at least 4 quarts of automatic transmission fluid. This should be changed every 30,000 miles, and the vehicle should be completely level whenever it is checked

It is fairly straight forward except for the electrical that goes through the Column itself.Be careful, I am assuming you want to change with a TILT? Why do you want to change it ?

Is the check engine light on ?

replace air & fuel filters, TUNE-UP, plugs, wires, etc., EGR valve & pcv valves need replaced

How To Perform a Parasitic Draw Testhttp://www.youtube.com/watch?v=KF1gijj03_0&feature=fvwrelThis video will show you how to test and determine which system is causing your vehicle to drain the battery. Good luck.

Check out this YouTube.com search unclog the heater core by Ericthecarguy

LOCATE THE PUMP WHICH CONNECTS TO THE FAN BELT OR BELT COUPLE REMOVE THE BOLTS THAT TIES THE PUMP TO THE ENGINE BODY THEN REMOVING THE FLEXIBLE RUBBER PIPES HAVING METAL CONNECTORS AT THEIR END AND REPLACE IT BACK WITH ANOTHER PUMP AND RE DO THE FITTINGS.AFTER WORK DONE FILL THE POWER STEERING BOTTLE WITH THE HYDRAULIC POWER STEERING OIL AND RUN THE ENGINE. AIR WOULD MOVE OUT AND IF LEVEL STILL LOW TOP TO THE UPPER MARKINGS AND MOVE THE STEERING LEFT AND RIGHT WITH THE ENGINE ON. THEN INSPECT THOROUGHLY FOR ANY LEAKAGE.REMEMBER THE PRESSURE IS TREMENDOUS.

If you mean the parking lights, have you checked the fuse and the headlight switch ?

likely cause is a broken or disconnected vacuum line near the firewall under the hood

With all these numerous facts given I think your plug wires may be defective.

Your vehicle is equipped with an alternator with an internal regulator. GM was one of the first to start using these back in the late 70's.

THIS REQUIRES A FEW SPECIAL TOOLS YOU WILL HAVE TO PULL THE STEERING WHEEL, & THE LOCK PLATE, THAT LOCKS THE STEERING WHEEL & THE TURN SIGNAL SWITCH. THERE IS A SCREW UNDER THE TURN SIGNAL SWITCH THAT HOLDS THE IGNITION LOCK CYLINDER IN PLACE. YOU MAY HAVE TO TAKE IT TO A SHOP. TOOLS ARE STEERING WHEEL PULLER & A LOCK PLATE SPRING DEPRESSOR, & PHILLIP SCREWDRIVER & A TORX SCREWDRIVER.

is the cigar lighter fuse blown, check, it powers the check engine light

The absolute worse thing you can do to a vehicle is just let it sit there. Anything over 6 weeks should be considered long term storage (in such that, all fluids are removed from the engine, spark plugs removed and Tbsp of oil placed in spark plug hole - to keep moisture out of the cylinders) That being said, the entire fuel system is probably gummed up and needs a serious cleaning.

Now, the problem could be a clogged fuel filter from debris picked up in the bottom of the fuel tank...easy fix though - filter is located on the passenger side, just in front of the rear tire...next to the side board.

Then repair the fuel leaks! Not only hazardous...catching the vehicle on fire, but the fumes are equally toxic. (never let a fuel leak go unchecked/repaired).

Next, try some STP fuel injection cleaner...follow the directions on the product label. Another trick you can try; add approximately 12Oz. of rubbing alcohol to about a half tank of gas...this will mix with any water in the tank and burn it off. And keep a fuel preservative in the tank if the vehicle is going to sit for more than two weeks.

Lastly, and I hope this is not the culprit...could be a bad fuel pump. To test this...spray engine starting fluid into the carburetor and see if the engine cranks and runs immediately...and continues to run for a few seconds. After you repeat this process, if the engine continues to die...then you most likely have a bad fuel pump.

I would rule out an electrical problem...such as fuses or the sort, because you are getting fire and the vehicle is attempting to start.

HTH,
Mike...