Faults:

I rarely had anything go wrong with this Truck!!! A/C quit at 235,xxx, but I used it mostly in the winter in the last few years as I trusted it in the snow, & handled extremely well.

I maintained this truck quite well. The only reason I don't have it now is some drunk drove on the wrong side of the street & drove into my parked Truck in the middle of the night & totaled it.

General Comments:

If you maintain the vehicle it will last longer.

Faults:

4L60E Transmission lost the front pump at 100K miles.

I replaced this with an after market pump. The original was poorly built.

At 120K miles the plastic radiator drain plug disintegrated while driving. I replaced this with a stock part from a local parts supplier.

At 125K miles the water pump began to leak so I replaced it.

At 127K miles the oil cooler hose ruptured. Upon examining the cooler assembly I discovered that the rubber lines are crimped to the metal lines attached to the engine. This design is just a complete insult, there was no reason to make it all one piece. I had to lift the engine one inch in order to remove the lines so I continued removing until the complete oil cooler assembly was gone. I purchased an oil filter tube for a 1996 Chevy Safari Van, which also uses the 4.3L engine. I installed the oil filter tube in my Blazer engine, now the oil filter is on the engine block where it belongs.

At 140K miles the fuel pump died. When I removed it I discovered that the wires inside the tank as well as the plug was melted. Several times just before the pump went out, while fueling the vehicle, I noticed a mist, almost a steam, coming out of the tank as I pumped the cold fuel in. I suspect the electrical current in the fuel caused it to heat. I have no explanation why it did not explode. In searching the web I have numerous posts that reflect this same problem, GM must know that they have true bombs on the highway.

Presently at 145K miles the transmission has lost the reverse gears which is another known problem with the 4L60E.I am replacing the complete transmission with a used one and when this the Blazer rolls again it is gone to a new home.

General Comments:

I bought this Blazer from the original owner and it had all service done at exact intervals. It had never and has never been off road. I use this vehicle for my family's winter ride and have taken very good care of it. I am an engineer and do all of my own maintenance and this is the most terribly designed vehicle I have ever worked on. The engine alone is great, everything else is garbage. My attorney is presently researching the fuel pump problem.

Faults:

Well, having put 175,000 miles on the truck most minor things have been replaced. The only "surprises?" were the transmission needed replaced at about 60,000 miles, no problems since.

One gripe is that the drivers seat has worn down past the foam, this appears to be a problem with most s-10 trucks. I even went to junk yards to buy a new drivers seat and all the s-10's there had the same problems.

I have replaced.

Water pump, head gasket set (very recently), fuel pump (it's in the gas tank ugh.), and expected wear parts.

General Comments:

This truck has been awesome. I have always changed my oil every 3000 miles and with a recent head gasket set replacement (minor anti-freeze leak)it showed (engine was super clean). The truck has been easy to work on when I needed to. I have put 175,000 miles on this truck and it still keeps going, I would trust it to go almost anywhere.