1999 GMC Yukon - Answered Questions & Fixed issues

There are a few ideas in the link, but you probably need a transmission specialist. https://www.google.com/search?q=1999+GMC+Yukon+2WD.+Transmission+won%27t+shift+into+overdrive ..

https://eautorepair.net/Marketing/Default.asp read the manual it is there. buy it read it. most folks are not going to pay for the manual for your car.

Time to replace the Thermostat and Radiator Cap, if the cooling system has not been serviced, you may want to replace the coolant with a 50/50 mix water/antifreeze. Make sure it's 50/50, to much antifreeze will gel up and to much water will freeze or boil over. If your not sure how to mix the antifreeze, you can buy the pre mixed.

1999 GMC TRUCKS YUKON 5.7L 8-cyl Engine Code [R]
Cooling System, With AC Initial Fill..........19 liters
Cooling System, Without AC Initial Fill..........16.5 liters

Good luck and keep me posted.

This video will show you how to change the filter. How to Intsall Replace Cabin Air Filter on 99 02 GMC Chevy Tahoe Yukon...

This may help: Link to picture of where the AC fuse is: https://www.google.com/search?q=1999+GMC+Yukon+what+is+the+fuse+for+the+HVAC&rlz=1C1CHBF_enUS813US819&tbm=isch&source=iu&ictx=1&fir=WYVx86e_5LRqfM%253A%252CxYQj5Df5_qYuPM%252C_&vet=1&usg=AI4_-kR9g2TCtnQKy5NfNIpYt6guaKZs8g&sa=X&ved=2ahUKEwj4oebA86fiAhUCOKwKHViYD7IQ9QEwC3oECAkQCA#imgrc=4_IN8CujYremFM:&vet=1

Remove the door panel and if it is screwed to the door frame, unscrew it. If it is riveted to the door frame, drill the rivets and bolt on the new one.

You have to know what makes the engine stop. It could be many things that cause your problem. When you put it into gears the engine move so it could be an open circuit or short to ground. 1- The engine load (Mass air flow) 2- Low Fuel pressure 3- Etc........ Start with a scanner and retrieve any engine fault code. If there is, fix it. There is not much info on your problem if you try something. Need more info to help you out to solve the problem. Hope it helps.

If you are cleaning an air flow meter use a approved MAF cleaner which is available at auto parts stores.

blocked air filter is a good reason

There's this website www.reliable-store.com They have books on ALL vehicles. it covers wiring diagrams, electrical diagrams, fuse diagram, torque specs, PCV, error codes, fault codes, service info, repair info, parts info, owner's/service/repair/parts/maintenance manuals etc everything totally.. I have 1987 toyota 4runner model and I keep servicing and when needed repair it on my own. worth it !!!

vaccine leak? Like the measles vaccine? Naw, measles vaccine wouldn't cause hesitation. But a vacuum leak could

Have you checked for trouble codes (DTCs) with a code reader?

One of the sensors, map, tps, etc may be going out. Could be a dirty (carbon) throttle body.

Check for bare wires and loose connections. Spikes in the line could cause it to trip. The pump itself could be the cause. it maybe heating up or drawing more power after working continuously for some hours. That is the reason it works again after a reset. I’m happy to assist further over the phone at https://www.6ya.com/expert/uttamjeet_2f3adc18600f8ede

Large wire on alternator should be hot all the time. If it is not check the large fuse in fuse box or find the break in the large wire.

Instead of wasting money replacing parts that don't fix the the problem why don't you take your vehicle to a qualified repair shop that has the proper diagnostic skill's an tool's to fix it right . 011 Fuel System Tests Fuel System Scan Data

Take it back to the shop who did the work an have them check it .

The problem is usually in one of the heat pads in the seat - the heating filament is probably broken and the culprit pad has to be replaced (big job). However, you should make sure the fuse is OK (check the owners manual for location). When the brakes were installed, one of the ABS sensors was either not installed properly, the wiring is disconnected or the sensor has failed - take it back to the shop that did the work.

problem throttle body or accelerator position sensor there will be codes but it will need somebody experienced with the right scanner protocol to read them