1997 GMC Sierra "4 high" Questions

...4 high. Tried going to 4 Auto and 4 High. Liked to never got it to change back to 2 High in both cases. Any suggestions? Not true that GM dealer is the only one that can fix it . There are other ...

manual four wheel drive, had it in four high, turned the truck off and now it won't engage in four high or 4 low it sounds like the front differential is not engaging, check the solenoid on front diff

...lights that are used nowadays. For instance, our 1976 Cadillac Seville has a 4 headlight system that lights up 4 headlights on the high beam mode. Good luck on seeing at night with the current set

...high In my 2000 GMC Sierra the blower fan only works on high - the other speeds (1-4) do nothing. Is it a bad resister? the fan sounds fine you will need to order a blower resister its easy to swap ...

...not work below 50 deg My 2005 Serria 4x4 truck will not work in 4 wheel drive high or low, but my Auto 4 wheel will work. Is there something wrong in the transfer case with electrical or

high heat or A/C . It works fine on level 1, 2, 3 but not 4 or 5 blower motor resistor is burnt out on those speeds check pins at the blower motor resistor a- tan- med 1 b- yellow- low c- pink - med 3

...high beams are switched on? I though all 4 headlights would operate with the high beams. I tried changing the outboard bulbs and they still go out. no the day running bulbs go out during night ...

...as auto zone and advanced auto do for free code gives place to start Chances are, the 4 wheel drive is going into 4 wheel high. Get the linkage adjusted properly, it's too close to the change

...high Most likely cause is the blower motor resistor. If you remove the glove box (4 screws, two on each side), the resistor is located behind the 4 relays. Two screws hold it in place. rmeove screws ...

...high or 4 high it stays in 4x4 low and will not go into 2 high or 4 high plus the engine light came on when this happened.. it could be your oxygen sencor went out if the car stubles at higher rpms ...