SPONSORED LINKS

1985 Chevy Blazer Loss power around 20 MPH.

Tiny
OATIKO
  • MEMBER
  • 1985 CHEVROLET BLAZER
  • V8
  • 4WD
  • AUTOMATIC
  • 125,000 MILES
I lose power when my truck hits 25MPH. I step on the gas and it just revs higher and speed up really really slow. What could be wrong? Please help. Please.
Saturday, October 16th, 2010 AT 3:53 AM

2 Replies

Tiny
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
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Saturday, October 16th, 2010 AT 4:48 AM
Tiny
OATIKO
  • MEMBER
  • 3 POSTS
Thanks for the quick response. Im new to this whole thing but im eager to learn. I will look into what you suggested. What would be first thing to look at? Do you think my transmission is bad? It still drives smooth and there is no knocking noise coming from the transmission. It just doesnt go faster than 20 MPH I had to drive it home on second. Gear at 15MPH. I hope its not the transmission.
Was this
answer
helpful?
Yes
No
Saturday, October 16th, 2010 AT 2:01 PM

Please login or register to post a reply.

Related Engine Low Power Content

Fix an Engine with Low Power!
VIDEO
Fix an Engine with Low Power!
Instructional repair video
Symptoms of Low Engine Power
GUIDE
Symptoms of Low Engine Power
The power your car's engine is producing is important. When you step on the gas you need your car to accelerate, mainly to keep you out of trouble when getting onto the...
VIEW MORE

Sponsored links