SPONSORED LINKS

1993 Oldsmobile Cutlass My car hesitates

Tiny
BAREFACTER
  • MEMBER
  • 1993 OLDSMOBILE CUTLASS
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 220,000 MILES
My car hesitates when I accelerate from a stop and sometimes dies out. When I have the cruise on, I can feel it hesitating while doing highway speeds. I replaced the spark plugs, wires and fuel filter and hat didnt work. A neighbor suggested using Seafoam and have it sucked in thru a vaccuum hose and leave it while it cleaned. That didn't work either.
SPONSORED LINKS
Thursday, April 9th, 2009 AT 10:32 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
1993 Oldsmobile Cutlass My car hesitates

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
Thursday, April 9th, 2009 AT 10:38 PM
Tiny
BAREFACTER
  • MEMBER
  • 2 POSTS
I was getting 28-30 MPGs now I get 15 MPGs.
Was this
answer
helpful?
Yes
No
Thursday, April 9th, 2009 AT 10:57 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
When the last time you gave it a major tune-up?
Was this
answer
helpful?
Yes
No
Thursday, April 9th, 2009 AT 11:40 PM

Please login or register to post a reply.

Related Engine Hesitate Content

Vacuum Leak Test and Repair
VIDEO
Vacuum Leak Test and Repair
Instructional repair video
Hesitation
GUIDE
Hesitation
An engine hesitation is an interruption of continuous power during acceleration. When a engine is hesitating it will cause the car to lunge or surge which will cause a...
VIEW MORE

Sponsored links