I have a 1992 gmc sierra. ill be driving and let off the gas and hit it again and it stuters. then goin up a hill it will bog down like im letting off the gas and hitting it more. doing this all the way up the hill. can anyone suggest something. it is 5 speed.

SOURCE: Pinking sound when hit the gas.

You may be using gas that has too low octane.

SOURCE: I have a 1992 GMC Sierra with a 5.7 motor. When

It sounds to me like your transmission is not well. It's working when the fluid is cold but not as it warms up. Pull the dipstick and check your transmission fluid for color and smell. It should be pinkish and smell like oil. My guess is that it will be closer to brown than pink and have a burnt oil smell to it. It the transmission is full, check the level with the trans warm,engine running, in neutral.I'd be shopping for another transmission. If the fluid is below the add mark, you an usually buy yourself some time on the replacement by changing the trans fluid and filter.At the same time add a transmission treatment with the new oil,I've had good luck with Lucas. Hope this helps.

SOURCE: cant drive

did you check your timing.

Testimonial: "some1 else told me about the timing as well but before i replaced parts it would do it occasionally then it would be alright is timing something the g"

SOURCE: Hey i have a 2006 gmc sierra 2500hd duramax 6.6

ENGINE LACKING POWER CHECK TRANSMISSION FLUID TRANSMISSION COULD BE SLIPPING.YOU COULD HAVE RESTRICED AIR FILTER AND FUEL FILTER.TURBO WASTEGATE PROBLEMS.

SOURCE: How do I find out what transmission i have in my

call gm dealership with vin# and they will tell you