20 Most Recent 1993 GMC Sierra K1500 - Page 8 Questions & Answers

the taillights ground to the frame of the truck on the left side.

Hello barksdale fr: My name is Roger and I will help you. The amount of a/c oil is 8.0 oz. If you are converting to R134a freon you need to use oil that is compatable with that freon. Also if you are converting the system use 10% less freon with R134a otherwise you will over charge the system. Be syre to use the propper orfice tube for the R134a freon if converting. Should you need further help please just ask. Please rate the answer. Thank You for using Fix Ya. Roger

some chevys have an 202 or 203 transfercase.most commond in newer trucks is the 203 which is a gear to gear transfercase,203 is chain drve and very rare anymore,so ck and see which one you have,because their is a 205 gear driven,the most common problem with all transfercases is when they pop out of gear,is a bad shifting fork,or a bad pilot ,or through out bearing not putting pressure on gear.hope this is helpful.

There can be a series of problems with you truck based on the age and mileage. The idler are is usuallythe first to go. Check the tie rod ends. The ball joints especially the uppers fail. Control arm bushings . Power steering box, depending on the size tires you have been using will create stress cracks on the frame where it bolts up. My suggestion would be to bring it to a reputable shop and get an estimate. You are not obligated to get it fixed there. In my shop, I do not charge for looking at a vehicle, as long as I am not taking things apart. Get a second estimate if you aren't comfortable with the first one. Independent shops which are well kept, are more apt to be straight up with you and not try to sell you what you don't need. Check with BBB for a history of complaints. Good luck.

sounds like a timing problem had same thing with my 93

Check to see if the catalytic converter is starting to go bad, loosen the front pipe from the engine,if performance improves the converter is bad . there are special tools to test for back-pressure this trick works Thanks Ray P.S if you need mopre help get back to me

Check right side tires for proper air pressure, check front end for looseness in any of ball joints, tie rod ends etc. Also check left brake to see if working properly.

you need to check and see if the actuator in front dif is working

the transmission was made to last 10 years of average driving. if it has not been rebuilt at least once already, it has more than done its job. yes they do not need to take it apart to know it needs rebuilt, and just maybe they have seen a couple thousand just like it.

I would suggest going to a salvage yard and purchase the wiring harness off a same make, model, year truck. You will drive yourself NUTZ trying to figure out the diagram . . . Take pictures before, during and after they are removing the harness. Should help in re-assemble... ALWAYS unplug, never cut the wires...

Did you reset your ECM ? When installed. This is where i would start. good luck,

No less than 25 psi hot, but that's weak, a good pressure is around 60 psi cold and 40 psi hot, depending on engine RPM