Main IndexAuto Repair Home Search Posts SEARCH
POSTS 		Who's Online WHO'S
ONLINE 		Log in LOG
IN




Automotive Repair
Car Troubleshooting Topics
  Car Troubleshooting
  Engine Troubleshooting
  Engine Fault Codes
  Electrical and Wiring
  Transmission Problems

Car Repair Topics
  Car Making Noises
  Car Stereo Repair
  Heating or AC Issues
  Motorcycles and ATVs
  Tricks of the Trade
  Truck Repair Advice

Site Options:   
  Login
  Sign up here!



Latest Forum Post
with_replies.gif image   Strut spring orientation and strut mount tension nut
2017 Nissan rogue awd 2.5 L Put in Monro...

with_replies.gif image   Transmission stuck in part, I have tried everything
So I'm working on my elderly fathers 201...

with_replies.gif image   2017 dodge journey LED headlights on/off randomly
Year of vehicle 2017 Make of vehicle dod...

with_replies.gif image   Kia Soul starter replacement issues!
Okay so my car is a 2010 Kia soul 2.0 en...

hot_with_replies.gif image   Please Help - Knock sound & engine fail
Hi all, Hoping to get some insight and ...

with_replies.gif image   multiple warning lights
2013 GMC Terrain 130,000 miles 4 cylinde...

with_replies.gif image   03 alero no low speed blower
Good day everyone, I have a 2003 Olds a...

with_replies.gif image   04 Chevy 2500hd tail light issues
Help!!! I have changed my combo switch...

with_replies.gif image   1999 Grand Caravan Sport not starting.
Hi. I'm new here. I hope someone can hel...

with_replies.gif image wrench.gif Brake Seals Bulging
2021 Toyota Corolla LE 1.8l 65,000 mile...




89 firebird acceleration studder/misfire

Search for (search options)
 



texasbaseball87
New User

May 9, 2009, 4:13 PM

Post #1 of 3 (3386 views)
89 firebird acceleration studder/misfire Sign In
1989
pontiac
firebird
2.8L 5speed
130,000mi.

ive been having this problem for a few days now. ive replaced the o2 sensor, spark plugs and wires, fuel pump and filter, idle air control valve, clutch, master and slave cylinder, and the starter. to start the problem the car has a bit of trouble starting.. i have to pump the pedal sometimes. then when you drive it seems to studder at certain rpms. mainly between 2500 and 3500 unless im really slamming on the gas. and the other problem is when it gets to running temp it wants to stall out when at an idle. any suggestion or common problems solved would greatly appreciated.

thanks,
justin


(This post was edited by texasbaseball87 on May 9, 2009, 4:15 PM)


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

May 9, 2009, 11:33 PM

Post #2 of 3 (3356 views)
Re: 89 firebird acceleration studder/misfire Sign In
Lots of possibilities at that age now. All tune up items need to be known on spec. Vacuum leaks ruled out and if it only does this warmed up there's a CTS (coolant tempsensor) that might be telling the controls the car is still cold,

T



autojoe
User

May 10, 2009, 7:15 AM

Post #3 of 3 (3351 views)
Re: 89 firebird acceleration studder/misfire Sign In
A faulty fuel pressure regulator can cause this.Dirty MAF....clean element with brake-kleen.pcv problem.coil leakage.exhaust restriction.some of the gm 2.8 generation II had egr filters that when dirty could cause hesitation...remove filter and clean...it is located on egr solenoid....would not cause hard start unless egr is not all the way closed.


(This post was edited by autojoe on May 10, 2009, 7:23 AM)





 
 
 






Search for (options) Privacy Sitemap