SPONSORED LINKS

1987 Chevy Nova Not running right

Tiny
DRAVENELL
  • MEMBER
  • 1987 CHEVROLET NOVA
  • V8
  • 2WD
  • AUTOMATIC
  • 109,000 MILES
My nova cranks up fine, but while driving it will cut back to 30mph and I can press the gas and it will stay there untill I put it in neutral and rev the gas and it will sometime run fine after that
Friday, May 8th, 2009 AT 8:58 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
Friday, May 8th, 2009 AT 9:02 PM

Please login or register to post a reply.

Related Engine Misfire Content

Intermittent Misfire
VIDEO
Intermittent Misfire
Instructional repair video
Misfire Random Code P0300
GUIDE
Misfire Random Code P0300
The world of automotive diagnostics can be complex, with numerous codes and potential issues to keep track of. One of the more common engine diagnostic codes is P0300, which...
VIEW MORE

Sponsored links