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Resources for the Repair and Maintenance of your Chevrolet S10 Blazer

Chevrolet S10 Blazer Models:

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Chevrolet S10 Blazer Problems

Heating & Air Conditioning -- Verified

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.

Drive Train -- Verified

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.

Electrical & Lights -- Verified

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.

Engine -- Verified

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.

Engine -- Verified

The intake manifold gasket may develop and external engine oil or coolant leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Our technicians tell us that operating the engine  with a coolant/oil mix can result in internal engine damage. Replacing the intake manifold gasket should correct these leaks.

Chevrolet S10 Blazer Questions and Answers

altlandf, 1990 Chevrolet S10 Blazer, York, PA

I was having problems with the engine running after it reached operating temparture. It would idle roughly. When I took off valve covers the rocker arms and push rods were covered with carbon. ...

Blazer guy, 1990 Chevrolet S10 Blazer, Silverlake, WA

I have a 1989 Chevrolet s10 4x4 blazer, it has a 4.3 TBI engine and 700 r 4 tranny. A couple weeks ago I was driving and went to use the right turn signal and the gas guage started to malfunction a...

nitecrawler31313, 1990 Chevrolet S10 Blazer, Hinesville, GA

With my 89 S10 4x4 Blazer I am having trouble with my A/C. The compressor clutch stopped ingaging I check the freon (good. The system was total replaced two summers ago, I gave check the wiring and...

vchamp6, 1990 Chevrolet S10 Blazer, York, PA

my driver's door power window goes down an inch or two and then stops. will not go any farther and it doesn't seem to try to go any farther (like i cant hear the motor on). but when i pre...

Jhama009, 1990 Chevrolet S10 Blazer, Florence, SC

I have a 1989 S-10 Blazer. I'm trying to hook up my radio but I'm not getting anything . There was a radio in there once b-4 working. When I tried to put a CD player in there it's no...

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Chevrolet S10 Blazer Reviews

vehicle heats up to over 210 when driving down the road don't know why when idleing it drops below 210

my heater works only on hi-speed.I have replaced the heater core,blower motor,fan regulator.I can`t think of any parts left to change.The blower motor we just replaced 2 days ago,and still have hi-speed only.

1993 Chevrolet S10 Blazer 4WD 4.3L CPI 6cyl Vin W only blows out of the floor and dash

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

hello my s10 blazer has aproblem with high idle it will not idle down after i drive it a while

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