1995 Chevy Truck eng. Runs rough

SR87GTA

MEMBER
1995 CHEVROLET TRUCK

Engine Performance problem
1995 Chevy Truck V8 Four Wheel Drive Automatic

i put a new motor in my truck. When accelerating it bog's down after 2k-2.5k it will throttle up with ease

Saturday, September 18th, 2010 AT 10:29 PM

2 Replies

RASMATAZ

MECHANIC
75,992 POSTS

Lack of acceleration, chugging, hesitating, jerking, bogging, misfiring etc. 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.
False air leakage.
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.

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Sunday, September 19th, 2010 AT 2:39 AM

SR87GTA

MEMBER
3 POSTS

(my first time using this )i have replaced: cap rotor wires plugs pcv dist, coil f.F. Map. Put used parts egr tpi iac.
The code are 33 34 35 map &vac leak could not find a vac leak anywhere new map changed vac port for map a little better timing is at 6-8 degress not a stock, motor boried over comp cam not sure on lift or duration was in a ir, oc tpi pukked 4 yr ago ran good when pulled out put a stroker in the iroc I have not checked fuel presser yet need the adapter could the ecm be bad going nuts please help dont like throwing part at them like that but had then laying around fuel psi should be 8[12 psi right

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Monday, September 20th, 2010 AT 12:47 AM