Questions & Answers for: GMC Envoy weathering

...will start first try, what's up with this?! could just be the oil if you are in a really cold environment (near or below 0), make sure to use 5w-30 versus 10w-30 which is suited for warmer

...highway. Engine light is now off and the car is running. What could be the problem? Had the same prob. Mine was the O2 sensors..... I replaced Both and [knock on wood] have had no more

...what can it be? when I put it in neutral the noise goes away and too if i have been driving it for awile the noise goes away it only roars when I start it every morning! That's the fan clutch for the ...

...What is the 14 reading on the compressor,voltage?200-210 sounds a little high,but with the cooling system having mostly antifreeze rather than water,it could probably go up to about 240 or 250 before ...

what was weight? ask your self? the lighter the weight in hot weather, the higher the oil pump sends it. don't know how cold it is where you are, but, to assure you get premium top engine lubrication,

...what is the difference in 4 high and 4 low. you probably will never need 4 low unless you live in the country like i do and pull trailers or logs or other vehicles out of ditches. normal bad weather ...

is 50 f. and above the lights flash as normal start-up and then extinguish. It does not matter on the number of occupants. Could this be a bumper sensor or possisibly a seat sensor? Sadly fixya has no

...is on. What are the possible issues? Message came on yesterday while driving. Brakes still operate normally. Vehicle in cold weather (0-10 degrees Fahrenheit) with snow accumulation for the last 4-5 ...