The heater core under the right side of the dashboard may leak engine coolant which can puddle on the passenger front floor. The loss of coolant may cause an engine overheating condition. Our technicians tell us that removal of the dash board is necessary to replace the heater on these vehicles.
Resources for the Repair and Maintenance of your 1991 Chevrolet S10 Blazer
1991 Chevrolet S10 Blazer
1991 Chevrolet S10 Blazer Problems
A door window may move slowly or stop in mid travel due to a failing power window motor. The affected window may start working again after the motor cools off. Replacing the faulty window motor will commonly correct this concern.
The transmission output shaft seal may leak transmission fluid. On 2WD models, this leak can cause the transmission mount to become oil soaked, which will require replacement of the mount along with the leak repair. On 4WD models, if this seal leaks, the fluid will leak into the transfer case, causing it to become overfull.
The fuel pump may fail causing the engine to stall and not restart. Our technicians recommend replacing the fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.
The Anti-lock brake system (ABS) control unit may fail internally causing the ABS warning light to illuminate.
1991 Chevrolet S10 Blazer Questions and Answers
Can you remove the EGR valve and the truck still run good
i have an oil leak it looks like the oil pan gasket but the oil is driping from a silver round pice on the right side of the pan what is that pice it has two tubes going out of it
my answer the pice is the oil pump i think it is right next to the oil pan an two tubes coming out of it going up to the oil filter on the fender wall it is leaking from the two tubs coming from th...
how easy is it to fix a front an rear seal leaking bad an what would b a good price should i expect from a shop
i just recently got my blazer put back together and well half way running again. lol anyways I had the fuel pump, sending unit and strainer replaced but not the fuel filter. I wouldn't need to...
1991 Chevrolet S10 Blazer Reviews
1991 s-10 blazer fuel gauge says full all the time. sending unit is a year old.was working but not now.thought it was the ground. ran ground to battery and still didn't work.still says full
overheats,have to kick the dash to see the fuel gauge,rpm gauge does not work,windows take forver to roll up,stalls out at stop signs/red light or if you take the turn too fast,can't drive it for more than three hours after that it shuts off,rear end sags,need realignment,new upper and lower arm bushing,extremely needs a complete rewirng,interior lights does not work,shut off when it is hot,or on the highway,low beam does not work,rear door does not work,front axle and trans need new seal,need new radiator,need need coolant hoses and clamps,needs new fuse block with new fuse,all bulbs need to be replace,needs new complete fuel system,rear bumper needs to be replace,tailgate switch needs to be replace,cigarrete lighter needs to be replace so i can plug in my phone,crusie control is all messed up,when you push the accelorator a certain way or too hard it shuts off,you floor the gas pedal and nothing happens,need intake manifold gasket,need to replace ABS,the exhaust keeps slipping off,need original complete set of mats,aftermarket one fitts horrible,when use the turn signal,the wiper works,ac works whenever it feels like,has to pop the hood and drive it like that,needs a trans evaluation to see if can get flushed, needs new dash,needs a new paint job,NEEDS A COMPLETE OVERHAUL AS SOON AS POSSIBLE.