20 Most Recent 1993 Chevrolet S-10 Blazer - Page 5 Questions & Answers

try cleaning the fuel system buy some lucas fuel cleaner and running that for a few full tanks and see if it imptoves if not let me know

What is fuel pressure at the injectors ?

You likely have either air in your brake lines or a leak.

you probably have a short in the wiring to the tps somewhere, trace the wiring

CK FOR A VACUM LEAK. IT SHOULD BE FAIRLY EASY TO FIND. YOU SHOULD HEAR A WHISLING SHOUND WERE THE LEAK IS CK ON THE BACK OF THEINTAKE MANIFOLD THERE IS I VACUM TEE THAT FAILS OFTEN. HOPE THIS HELPS BILL

its prob on the front of the intake up under the intake duct it has 2 bolts round about 4'' in length next to a/c compressor

Start by putting 12 volts directly to the horn ,to see if has failed

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Check the fuse under the dash. Did you replace the inline fuel filter? If not, you could loosen the line going into the filter then turn the key to the on position. The pump should run for about 2 seconds then the relay should kick off. Turn off the key for approx. 5 seconds then cycle key back on and the pump should cycle again. If you get a 2 second burst of fuel each time then the pump is cycling. Install a new fuel filter and check the grounded wire by the tank. Hope this helps. :)

Faulty fuel pressure regulator.

Check the injectors and make sure they are working.

The computer gets a signal from the distributor and grounds the injectors when needed.

It sounds to me like the transmission safty switch has gone bad. Does the car start while it is in gear? this also would point to the safty switch