SPONSORED LINKS

1995 Buick Park Avenue rough running

Tiny
DAMNITJIM
  • MEMBER
  • 1995 BUICK PARK AVENUE
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 118,000 MILES
I got a buick with a v6 3800 rough idle and misses while drive to stall.
I threw new pluggs and wires ran good for about 15 min then back to the same. It had been sitting for a while before I got it. Put sea foam in it and new gas I was thinking fuel filter? Any ideas running too bad to drive to auto parts store right now to get tested
SPONSORED LINKS
Sunday, March 7th, 2010 AT 9:57 AM

5 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Engine running rough or misfiring can be cause by the following:
1. Defective spark plug.
2. Inadequate spark/coil, defective spark plug wire.
3. Lack of compression
4. False air leakage.
5. Faulty fuel injectors.
6. Insufficient fuel pressure.
7. Contaminated fuel.
8. EGR valve that is leaking.
9. Oxygen sensors.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, March 8th, 2010 AT 6:07 AM
Tiny
DAMNITJIM
  • MEMBER
  • 4 POSTS
Plugs are new new wires
replaced vac hoses
injectors seem to be working can feel them
fuel pressure is about 47
put new fuel in
electric egr not sure how to test it
replaced maf
one coil seem out of spec replaced
any other ideas
Was this
answer
helpful?
Yes
No
Saturday, March 20th, 2010 AT 11:53 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Try cleaning out the idle air control valve and test the throttle position sensor
Was this
answer
helpful?
Yes
No
Sunday, March 21st, 2010 AT 1:54 PM
Tiny
DAMNITJIM
  • MEMBER
  • 4 POSTS
Got a new idle control valve, put in new fuel filter, new 02, new cranksensor,
replaced upper intake man was leaking, did vac test held 19hg, now but it will still stall after some time, tps seems to be working not sure where now im going to have it tested tommorrow
Was this
answer
helpful?
Yes
No
Tuesday, April 13th, 2010 AT 8:32 PM
Tiny
DAMNITJIM
  • MEMBER
  • 4 POSTS
It now seems hard to start when cold fires up then dies
warms up runs ok for about 15 min
maf was reading low
replaced lower manifold gaskets
cam sensor, had the icmod tested and passed twice
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Sunday, April 25th, 2010 AT 8:14 PM

Please login or register to post a reply.

Related Engine Runs Rough Content

Is it Safe to Drive Check Engine Light?
VIDEO
Is it Safe to Drive Check Engine Light?
Instructional repair video
Check Engine Light
GUIDE
Check Engine Light
Why is my check engine or service engine soon turned on? In this guide we talk about what this is associated with this notorious light, what it is used for and what you...
VIEW MORE

Sponsored links