Jake Brakes??? Thats what it feels like!
#1
Member
Thread Starter
Join Date: Jul 2006
Location: Cali
Posts: 246
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1992 Z28
Engine: 350 TPI
Transmission: World Class T-5 5speed manual Trans
Axle/Gears: STOCK G92 performance 3.42
Jake Brakes??? Thats what it feels like!
Ok so currently i am running a 92 350 TPI with headers Hi Flow cats, and no mufflers. I noticed the problem before, but it has gotten worse. The car is very jerky. On a partial throttle it will start bucking. if, im going down hill and gassing it, then all of a sudden stop gassing it, it will wind down and then it'll hit a point in the RPM where it will jerk and decelerate quicker (like when you hear a semi truck going down hill--"pbpbpbprprarparpaappa"-is how it sounds ) i am stumped on this now. I have done a complete tune up, fuel filter, and it should be running better than it is.
I also thought it might be due to the lack of backpressure???
Any Help or ideas?
Thanks,
Boldguy
I also thought it might be due to the lack of backpressure???
Any Help or ideas?
Thanks,
Boldguy
#2
Senior Member
iTrader: (1)
Join Date: Sep 2003
Location: St. Louis, Missouri
Posts: 988
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1989 Firebird Formula
Engine: 383 Stealth Ram
Transmission: 700R4
Axle/Gears: 3.73 9 bolt Posi
Re: Jake Brakes??? Thats what it feels like!
Check your TPS sensor voltage to make sure there are no dead spots.
Also, check the fuel pressure at the rails to make sure it is steady
Hope this helps.
Also, check the fuel pressure at the rails to make sure it is steady
Hope this helps.
#3
Member
Thread Starter
Join Date: Jul 2006
Location: Cali
Posts: 246
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1992 Z28
Engine: 350 TPI
Transmission: World Class T-5 5speed manual Trans
Axle/Gears: STOCK G92 performance 3.42
Re: Jake Brakes??? Thats what it feels like!
TPS voltage flows steady and goes down as
-> WOT. I noticed that it doesn't do it when its cold (ie night or morning) but when it warms up it'll be bad as ever...
Thanks for the input. Have you had this problem before? or has anyone?
im starting to think IAC valve...
-> WOT. I noticed that it doesn't do it when its cold (ie night or morning) but when it warms up it'll be bad as ever...
Thanks for the input. Have you had this problem before? or has anyone?
im starting to think IAC valve...
Thread
Thread Starter
Forum
Replies
Last Post