Originally Posted by richabilly

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?

Originally Posted by g2_5point0

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

Originally Posted by 88 orangepeel notch

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.

Originally Posted by cholericfc

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.

Originally Posted by Cathym

have a 95 Ford Mustang it surges and then dies when in gear and then when going down the road it still surges and will not hit 3rd or 4th gear what could be the problem?