RX7Club.com - Mazda RX7 Forum

2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
Sponsored by:
Banzai Racing

My car bucks a lot when I let go of the gas.

Thread Tools
 
Search this Thread
 
Old 11-21-04, 07:48 PM
  #1  
Full Member

Thread Starter
 
Eric'sNoPistons's Avatar
 
Join Date: Nov 2004
Location: North Philly
Posts: 89
Likes: 0
Received 0 Likes on 0 Posts
My car bucks a lot when I let go of the gas.
When Im driving my car and i let go the gas it bucks alot.Also I dont know if this problem is related but when my car is on not in gear it makes a whinning noise but when I push the clutch in It stops and when I let it go it makes the noise again. any help for these problems?
Eric'sNoPistons is offline  
Reply Like
Old 11-21-04, 08:00 PM
  #2  
Full Member

Thread Starter
 
Eric'sNoPistons's Avatar
 
Join Date: Nov 2004
Location: North Philly
Posts: 89
Likes: 0
Received 0 Likes on 0 Posts
Any help
Eric'sNoPistons is offline  
Reply Like
Old 11-21-04, 08:03 PM
  #3  
Rotary Freak

iTrader: (6)
 
RotaryWeaponSE7EN's Avatar
 
Join Date: Dec 2001
Location: Mission,KS
Posts: 2,937
Likes: 0
Received 2 Likes on 1 Post
How hard? Like neck breaking or just a little bit?
RotaryWeaponSE7EN is offline  
Reply Like
Old 11-21-04, 08:06 PM
  #4  
Full Member

Thread Starter
 
Eric'sNoPistons's Avatar
 
Join Date: Nov 2004
Location: North Philly
Posts: 89
Likes: 0
Received 0 Likes on 0 Posts
in between
Eric'sNoPistons is offline  
Reply Like
Old 11-21-04, 08:13 PM
  #5  
Rotary Freak

iTrader: (6)
 
RotaryWeaponSE7EN's Avatar
 
Join Date: Dec 2001
Location: Mission,KS
Posts: 2,937
Likes: 0
Received 2 Likes on 1 Post
Could be the ignition system or the tps. Those would be my first guess. Does it miss at all while ur on the gas?
RotaryWeaponSE7EN is offline  
Reply Like
Old 11-21-04, 08:20 PM
  #6  
Full Member

Thread Starter
 
Eric'sNoPistons's Avatar
 
Join Date: Nov 2004
Location: North Philly
Posts: 89
Likes: 0
Received 0 Likes on 0 Posts
no it doesnt. do you think it could be fuel injectors
Eric'sNoPistons is offline  
Reply Like
Old 11-21-04, 08:40 PM
  #7  
Full Member

Thread Starter
 
Eric'sNoPistons's Avatar
 
Join Date: Nov 2004
Location: North Philly
Posts: 89
Likes: 0
Received 0 Likes on 0 Posts
what do u think
Eric'sNoPistons is offline  
Reply Like

Trending Topics

Old 11-21-04, 09:31 PM
  #8  
Rotary Freak

iTrader: (6)
 
RotaryWeaponSE7EN's Avatar
 
Join Date: Dec 2001
Location: Mission,KS
Posts: 2,937
Likes: 0
Received 2 Likes on 1 Post
I'd say start checking them one by one.
RotaryWeaponSE7EN is offline  
Reply Like
Old 11-21-04, 09:40 PM
  #9  
Rotary Enthusiast

 
drago86's Avatar
 
Join Date: Oct 2002
Location: California, Bay Area
Posts: 1,165
Likes: 0
Received 0 Likes on 0 Posts
adjust your tps,.. thats usually at the core of bucking problems.
drago86 is offline  
Reply Like
Old 11-21-04, 09:48 PM
  #10  
Boosted. I got BLOWN!!!

iTrader: (29)
 
beefhole's Avatar
 
Join Date: Sep 2003
Location: Queens, NY
Posts: 3,742
Likes: 0
Received 1 Like on 1 Post
How slow are you going? In low gears and low speeds (around 20mph 1st or 2nd) the car will buck no matter what, that's just the nature of the motor. Yes, my TPS is set perfect
beefhole is offline  
Reply Like
Old 11-21-04, 11:26 PM
  #11  
sar
Doin a rebuild.

iTrader: (1)
 
sar's Avatar
 
Join Date: Aug 2004
Location: Roswell (atl ) Georgia
Posts: 539
Likes: 0
Received 0 Likes on 0 Posts
Got any extremely bad bearings on something? My car is so much easier to drive now that my alternator doesnt randomly steel 20hp.
sar is offline  
Reply Like
Old 11-21-04, 11:43 PM
  #12  
Rotary Enthusiast

iTrader: (9)
 
boosted1205's Avatar
 
Join Date: Jun 2003
Location: west
Posts: 1,191
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Eric'sNoPistons
When Im driving my car and i let go the gas it bucks alot.Also I dont know if this problem is related but when my car is on not in gear it makes a whinning noise but when I push the clutch in It stops and when I let it go it makes the noise again. any help for these problems?
Sounds like your pilot bearing is going bad.
Your bucking could be just a dash pot needing adjustment .
boosted1205 is offline  
Reply Like
Old 11-21-04, 11:49 PM
  #13  
Junior Member

 
autorx7's Avatar
 
Join Date: Mar 2004
Location: sf
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Wrong gear, the car will buck.
autorx7 is offline  
Reply Like
Old 11-21-04, 11:55 PM
  #14  
Sharp Claws

iTrader: (30)
 
RotaryEvolution's Avatar
 
Join Date: Oct 2003
Location: Central Florida
Posts: 5,107
Likes: 0
Received 41 Likes on 40 Posts
could also be an input shaft bearing but that is usually a grinding type of noise when that bearing goes out, a hum or whine is usually a pilot bearing.
RotaryEvolution is offline  
Reply Like
Old 11-22-04, 12:30 AM
  #15  
Rotary Enthusiast

iTrader: (9)
 
boosted1205's Avatar
 
Join Date: Jun 2003
Location: west
Posts: 1,191
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by autorx7
Wrong gear, the car will buck.
I don't think that's what he meant.
boosted1205 is offline  
Reply Like
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Should I buy? 700$ turbo 87
cam_7779
2nd Generation Specific (1986-1992)
9
08-18-15 07:48 AM
WWYD S4 Half bridgeport
Engine stand ready
New Member RX-7 Technical
3
08-14-15 10:26 PM
Tags
Back to Subforum
2nd Generation Specific (1986-1992)
View Next Unread
New wheels for my 7...




Advanced Search
Quick Reply: My car bucks a lot when I let go of the gas.


Reply Closed Thread Share

All times are GMT -5. The time now is 07:01 PM.