Classic Mustangs (Tech) Technical discussions about the Mustangs of yester-year.

car surging/jumping

Thread Tools
 
Search this Thread
 
Old 11-21-2007, 04:08 PM
  #11  
Oxnard Montalvo
4th Gear Member
 
Oxnard Montalvo's Avatar
 
Join Date: Sep 2006
Location: 1984
Posts: 1,188
Default RE: car surging/jumping

Check the timing and make sure the vacuum advance is working.
Oxnard Montalvo is offline  
Old 11-21-2007, 08:05 PM
  #12  
kaiser18
1st Gear Member
 
kaiser18's Avatar
 
Join Date: Jun 2007
Location:
Posts: 80
Default RE: car surging/jumping

I replaced my carb a few weeks ago and I was having similar issues aswell, it was surging and even stalling in some cases. I replaced the injection nozzle from the new carb with the nozzle from my old carb and problem solved.
kaiser18 is offline  
Old 11-21-2007, 08:30 PM
  #13  
kdkeller
 
kdkeller's Avatar
 
Join Date: Apr 2007
Posts: 14
Default RE: car surging/jumping

My first thought was low fuel pressure resulting from a bad pump (diaphram shot, broken trigger arm, etc.) or restriction in the line. If fuel pressure is fine, could you have a motor mount problem? Is the engine literally moving around in the engine bay?

To check: With the hood up, put it in gear, hold the brake and rev the engine. If the engine lifts up too far on the mounts, the mounts are shot.
kdkeller is offline  
Old 11-21-2007, 09:19 PM
  #14  
knuckless
3rd Gear Member
Thread Starter
 
knuckless's Avatar
 
Join Date: Aug 2007
Location: New Jersey
Posts: 588
Default RE: car surging/jumping

ok its not a fuel problem in my opinion. the car rev and engine speed isnt alternating at all. theres no other way to explain in other than the whole clutch issue i was saying before. its either timing or transmission problem in my opinion, the engine is getting plenty of fuel, i put a new carb on already,

whenever i floor it out of a stand still its like im holding the clutch half in (its an automatic=no clutch) but whenever im cruising and floor it, it puts up excellently
knuckless is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
djbigskrilla
2005-2014 Mustangs
24
09-20-2022 01:04 AM
chain
New Member Area
6
08-17-2015 08:52 AM
92 5.0stang
5.0L (1979-1995) Mustang
4
08-13-2015 06:46 AM
Milan Dragway
Members Rides and Car Show Section
0
08-12-2015 03:43 PM
ccwebb
GT S197 General Discussion
2
08-11-2015 06:47 PM



Quick Reply: car surging/jumping



All times are GMT -5. The time now is 11:55 PM.