20 Most Recent 1996 GMC Sierra - Page 3 Questions & Answers

Not sure if you mean the switch or the actuator. The switch can be tested with a test lamp or ohm meter, while the actuator will likely have to be removed and inspected.

you shift cable might be bad, it usually breaks under the carpet on drivers side you will have to remove the seat to get to it

I believe a 96-98 harness from any chevy or gmc would work. V8 to V8 not V6 to V8 the 305 and 350 would be the same harness

With blower switch on . and ignition key on try to hit blower motor if it work then motor is defect if not then you need to know if current goes to blower motor hope it help

It's in the program. You can buy a programmer from many sources and reprogram it yourself. What these things do is raise the rpm limit to increase horsepower and torque. The reason for a limiter in the first place is to guard against overrevving the engine and destroying it.

Check coolant level if you are not loosing coolant you do not have a major problem. The catalytic convertor is doing its job the parts inside the convertor reducing the bad air to good at and water . Like the other guy said if your radiator does not have an oily white slime and you do not smell a sweet odour from tail pipe or a blue cloud, it's just your muffler system is just cooling down, could get more technical but that would not be needed. K I S S rule.

check breather pipes from gearbox to engine and possible induction manifold leak

Possible ECU fault (engine management). CHECK fuel rail pressure and injector fault

probly

try cleaning the starter cable if that dont work change the starter

INSPECT BATTERY CABLES/TERMINALS BATTERY VOLTAGE ?? WITH KEY IN 'CRANK' POSITION,TEST VOLTAGE TO STARTER SOLENOID 'EXCITEMENT' TERMINAL (SPEC BATTERY VOLTAGE SHOULD BE PRESENT) If you need further help, reach me via phone at https://www.6ya.com/expert/ralph_2f0886b7d6af32ce

Add 'Short Circuit' test equipment to said circuit & fault trace....Time for a pro !! If you need further help, reach me via phone at https://www.6ya.com/expert/ralph_2f0886b7d6af32ce

1 Scanned/codes stored ?? 2 Add test equipment/test for signals TO coil .... If you need further help, reach me via phone at https://www.6ya.com/expert/ralph_2f0886b7d6af32ce

Engine size ?? VIN # ?? If you need further help, reach me via phone at https://www.6ya.com/expert/ralph_2f0886b7d6af32ce

posible bad relay stuck

It does not have a carburetor, its fuel injected. Chk, fuel pump pressure, fuel pump status, fuel filter, and make sure its not out of fuel. if all is ok, injectors for correct function.... noid lights or stethoscope. check cylinder balance for ignition.

Before you change the switch, do you have high speed only on your fan? If so you probably need a fan speed relay instead

Check for vacuum leaks n (broken or leaking hoses; gaskets), bad EGR valve (plugged or stuck open) or raw gas running into the intake manifold (leaking fuel injector(s) or bad carb).

sure, IN USA. the FSM shows, that (factor service manual) or alldata.com . what is best is the schematic. this is the world wide web and GM exports cars and trucks and all are wired differently (laws in your country,etc) 1960-2000 United States (see alldata.com for fast answer) 1965-2000 Canada 1964-2001 Brazil