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Loosing power

Tiny
CHRYSTAL STERNS
  • MEMBER
  • 1994 GMC SUBURBAN
  • V8
  • 2WD
  • AUTOMATIC
  • 127,000 MILES
My 1994 suburban will not accelerate it goes up and down im pulling a u haul trailer on the interstate
Monday, January 10th, 2011 AT 12:42 AM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
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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Monday, January 10th, 2011 AT 12:52 AM
Tiny
CHRYSTAL STERNS
  • MEMBER
  • 2 POSTS
Ok well im on the road now what should I do
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Monday, January 10th, 2011 AT 1:09 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
You also could have overheated the transmission and fried the transmission. You need to have it towed to a shop for inspection and diagnosis.
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Monday, January 10th, 2011 AT 1:44 AM

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