Mechanics

NO POWER ON ACCELLERATION (WELL MAINTAINED)

1995 GMC Safari • 6 cylinder 2WD Automatic • 220 miles

1995 gmc safari 4.3L 2 wheel drive at. Started losing power the other night, He could only dive it home at 10 mph. I replaced the fuel pump and filter. It idles. As it did before. But at times a little rough. I dont have a code reader, I believe its odb1 and I cant find one for that vehicle. If its obd 2 I can buy one. Its my grandfaters vehicle and it 2 hours away so im just looking for some guidance. Any will be appreciated. Thanks, Bill
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Bill49203
March 29, 2011.



Check the exhaust system for restriction could be a clogged catalytic converter start here

Rasmataz
Mar 29, 2011.
No cat?

Tiny
Bill49203
Mar 29, 2011.
Could be caused by one of the following below

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note: If it doesn't apply disregard it and keep testing.

Rasmataz
Mar 30, 2011.