SPONSORED LINKS

1989 Chevy Caprice Feeling low power on acceleration

Tiny
AZIZAM
  • MEMBER
  • 1989 CHEVROLET CAPRICE
  • V8
  • 2WD
  • AUTOMATIC
  • 15,000 MILES
Dear Sir,

Feel like very low power while pressing the acceleaaror and makes like a "tired sound" to reach the speed. I changed all spark plug wires, spark plugs and cleaned the fuel injecter. But still the same. The mechanic adjusted the Delco, but it made some additional sound like of motor bike, at below 60kmph speed. Now he can not do much more. Any help?
SPONSORED LINKS
Friday, December 25th, 2009 AT 10:35 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Dirty fuel injectors (cleaning the injectors often fixes this).
Bad MAP (manifold absolute pressure) sensor
Bad TPS (throttle position) sensor
Bad or dirty MAF (mass airflow) sensor
Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
Bad gasoline (fuel contaminated with water or too much alcohol)

Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
Wet plug wires
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Saturday, December 26th, 2009 AT 12:13 AM

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