Home
What's new
Latest activity
Authors
Store
Latest reviews
Search products
Forums
New posts
Search forums
What's new
New posts
New listings
New products
New profile posts
Latest activity
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
Cart
Cart
Loading…
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Search titles only
By:
Menu
Log in
Register
Navigation
Install the app
Install
More options
Change style
Contact us
Close Menu
Forums
Mustang Forums
Fox Body Mustangs
Hesitation/Loss of Power problem
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="FISHTAIL" data-source="post: 9848088" data-attributes="member: 19212"><p>I'm guessing, but it sounds like a weak spark issue when the car is getting into boost and starting to load up with fuel. You still running the stock ignition system? What does your A/F look like when it starts running rough? Your fuel pressure? </p><p></p><p>Do you still have the original TFI module? Those guys like to fail when they get hot. Normally they fail and the car flat out quits running, but I had a module on my 88GT that went through this goofy intermittent failure that acted much like your describing. It would run fine until you stood on it, then it would buck and shudder until it got up to 4k rpms or so. This continued on and off for a long time before I finally replaced the TFI out of desperation and walla..problem gone. I've never had or seen another fail like that again, but it's possible that is your issue.</p></blockquote><p></p>
[QUOTE="FISHTAIL, post: 9848088, member: 19212"] I'm guessing, but it sounds like a weak spark issue when the car is getting into boost and starting to load up with fuel. You still running the stock ignition system? What does your A/F look like when it starts running rough? Your fuel pressure? Do you still have the original TFI module? Those guys like to fail when they get hot. Normally they fail and the car flat out quits running, but I had a module on my 88GT that went through this goofy intermittent failure that acted much like your describing. It would run fine until you stood on it, then it would buck and shudder until it got up to 4k rpms or so. This continued on and off for a long time before I finally replaced the TFI out of desperation and walla..problem gone. I've never had or seen another fail like that again, but it's possible that is your issue. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Mustang Forums
Fox Body Mustangs
Hesitation/Loss of Power problem
Top