Go Back   MustangForums.com > Ford Mustang Tech > 5.0L (1979-1995) Mustang
Sign in using an external account
Register Forgot Password?
Search


5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Sponsored by Weld Racing


Welcome to Mustang Forums!
Welcome to Mustang Forums.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
 
 
 
Thread Tools Search this Thread
Old 06-30-2011, 02:16 AM   #161
deceiver
 
Join Date: Jan 2010
Vehicle: 1995 Ford F150
Location: Louisiana
Posts: 14
Default

I would suggest cleaning your mass air, check your wiring, if you moved the harness it may be something not hooked up right. Also make sure your map sensor(bp sensor on MAF cars) is not hooked up to vacuum.

http://fordfuelinjection.com/
This site has a ton of info, I used it extensively when I swapped my motor over.. I put a 90 mustang efi setup in a 95 f150.


Quote:
Originally Posted by richabilly View Post
well no responses thus far. Discovered something about all this between last night and this morning. You see when it does it to my truck, it does it for a long time -- or tends to stay that way. I tried turning off my car at a stoplight and when i turned it back on it cleared up -- everything was normal. I did this a few times, and 4 out of 5 times, it worked just fine. Does this narrow down what it could be?
This ad is not displayed to registered or logged-in members.
Register your free account today and become a member on Mustang Forums!
deceiver is offline   Reply With Quote
Old 12-10-2013, 10:32 PM   #162
Skanesystang
 
Join Date: Dec 2013
Vehicle: 2000 mustang coupe
Location: Canada
Posts: 7
Default

Quote:
Originally Posted by g2_5point0 View Post
Does your car only do that when hot? I have similar problems. When cold, it accelerates like a champ, but after driving for a few miles in this heat, it starts to act up. From a stop, I can't rev it too high or else it cuts out real hard, as if the gear popped out. When in motion and constant, it'll sputter for a fraction of a second, right?

I am convinced it's ignition related and not fuel related for me. Ive changed my stator, the TFI module was changed earlier this year (Before the stator) and now im looking to change my coil.


I'd bet your problem is more heatsoaked stuff than it is fuel related
hey my car is doing the exact same as your description I can't find out what it is I've been trying for months please get back to me your the only one I've seen with this !!!!
Skanesystang is offline   Reply With Quote
Old 12-10-2013, 10:38 PM   #163
Skanesystang
 
Join Date: Dec 2013
Vehicle: 2000 mustang coupe
Location: Canada
Posts: 7
Default

When cold, it accelerates like a champ, but after driving for a few miles in this heat, it starts to act up. From a stop, I can't rev it too high or else it cuts out real hard, as if the gear popped out. When in motion and constant, it'll sputter for a fraction of a second My car is doing this I've been trying to figure out what is wrong for months anyone that can help !!!?
Skanesystang is offline   Reply With Quote
Old 12-11-2013, 08:51 AM   #164
88 orangepeel notch
4th Gear Member
 
88 orangepeel notch's Avatar
 
Join Date: Mar 2010
Vehicle: 1988 notchback
Location: Wisconsin
Posts: 1,884
Default

It's better to just start a new thread than dig up old ones. That way we don't have to read 17 pages to help you. And the guy you quoted hasn't been on here for a year and a half lol. Start a new thread and then we'll see if we can help.
88 orangepeel notch is offline   Reply With Quote
Old 12-11-2013, 10:16 PM   #165
Skanesystang
 
Join Date: Dec 2013
Vehicle: 2000 mustang coupe
Location: Canada
Posts: 7
Default

Quote:
Originally Posted by 88 orangepeel notch View Post
It's better to just start a new thread than dig up old ones. That way we don't have to read 17 pages to help you. And the guy you quoted hasn't been on here for a year and a half lol. Start a new thread and then we'll see if we can help.
Hey sorry just not really sure how to start a new thread ! Pretty new to this thanks a lot for the reply though !
Skanesystang is offline   Reply With Quote
Old 07-29-2014, 11:39 PM   #166
Rookie77
 
Join Date: Jul 2014
Vehicle: 89 Mustang GT
Location: Or
Posts: 1
Default

I had a similar problem with my 89 GT, at idle it ran fan and would rev out no problem. But under a load it would spit and sputter and backfire. My issue was a simple fix, it turned out to be a melted plug wire. It burnt through rite at the plug, had to modify the header for more clearance. After a new set of plugs and wires she is back to passing everything but the gas staition








Quote:
Originally Posted by cholericfc View Post
The car will start up fine and idle perfectly. When I head down the driveway it drives fine too. However, under any kind of load or increased throttle, the car will backfire or hesitate. The rpms will not increase when the accelerator peddle is pressed. Its not u-joints, otherwise the rpms would increase, so that ruled out. If I press down on the peddle from a 1900rpm cruise in 4th gear, it'll sputter, chug, and the car will jerk - THEN it'll recover and get some power back. When taking off from a stop, I can't really go past 2500rpms when shifting, otherwise I'll hear/feel the problem.

This problem was noticed every once in a while during each week, now its every time I drive it.

I have a 1990 Mustang with a 302 crate motor with a Bcam, installed about two years ago. I've put about 10,000miles on it. Just recently had an oil change. Everything mechanical is new on the car except for the following: fan, fan clutch, wiring harness, fuel lines, distributer, and a rebuilt T5 with a 3 year old clutch. The fuel pump is 155lph.

The last time I checked my timing was two years ago. The idle was surging recently, so I did an idle setting procedure and raised the throttle to about 800-950rpms.

My mechanic said the problem is all motor and that the driveline on the car is fine. He told me to replace the spark plugs, distributer cap and rotor, and spark plug wires. The car ran noticeably better. BUT the problem still exists. I don't know what i'm doing when it comes to the internal workings of a motor, but I do understand how things move. I guess I need to pull the valve covers off and fix/replace something broke there or the cam is bad. But everythings new, I just don't get it.


While I'm at it, I have no adjustable fuel regulator on this car and I wonder if the engine has been getting too much fuel most of the time.
Rookie77 is offline   Reply With Quote
Old 11-23-2014, 07:12 AM   #167
leight2691
 
Join Date: Nov 2014
Vehicle: 1994 ford mustang convertible
Location: georgia
Posts: 1
Default hesitation issues

I have been having hesitation and sputtering issues myself. When i go up hill or even when im on flat ground it will start to sputter and lose power. The rpm's will drop and the engine will bog down and then after a second it will jerk and take off. I have replace everything air filter, spark plugs and plug wires. I cannot find the issue anywhere. I had a mechanic plug a computer to it and it said the camshaft position sensor was bad. Well i changed it and nothing changed. I NEED EXPERT HELP! getting real tired of fighting with it
leight2691 is offline   Reply With Quote
Old 11-23-2014, 07:12 AM
MustangForums
Ford Mustang




Paid Advertisement

 
 
 
Reply

Tags
allintext50, bcam, car, fuel, half, load, mustang, oil, pressure, saleen, sputter, sputtering, sputters, supercharger, symptoms, throttle

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Advertising

Featured Sponsors
Vendor Directory
New Sponsors
All times are GMT -5. The time now is 01:49 PM.

© Internet Brands, Inc.


This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company
Emails Backup