couple issues with stang, sputtering and shaking please help!!

delgadog · January 31st, 2012, 01:55 PM

well, a guy at work at a 1993 GT he's willing to sell me, it has 63k original miles. he said theres just a couple of issues with it. first off, when the engine is cold and he's driving it sputters and hesitates a bit but after the engine warms up it stops. we think it might be the air intake might be fouled and i suggested to take off the air intake and run it with just the TB open (for a short distance) and see if that clears up the issue. The second issue is that in 4th gear around 40mph the entire car starts to shake, after it passes 40mph the shaking stops... idk whats wrong with it, but i think it could be motor and transmission mounts. He also said the transmission is new, about 2 years old. It has headers and full exhaust and thats about it. the front bumper has a chunk that is missing from hitting a racoon.lol. the bumper is not a factor as i can pick one up relatively cheap. any thoughts on what might be causing these problems? thank you for any help.

ps. i'm not all that knowledgeable with these fox 5.0's, i had a 95 and most of the work was already done to it when i baught it. the car i currently own is in my sig. thank you again!

fogged306 · January 31st, 2012, 02:03 PM

If you remove the air intake and run open TB, the car won't run right. Air needs to flow through the MAF. If you suspect the filter is dirty, pull it and take a look. You can also pull the MAF and look at the element. If it looks like it has dirt or a film on it, get some MAF cleaner and spray it down. Also check for codes and see what you come up with. Here is a very good write-up on how to check for codes in a fox. Also pull some plugs and take a look at them, and check the wires.

Is this an auto or a 5sp? Does the shaking only in 4th gear? Have you tried 3rd gear at 40? Neutral at 40?

delgadog · January 31st, 2012, 02:12 PM

the car is a 5spd, all i got from the guy was that in 4th gear around 40mph it shakes. he says in neutral he revs the engine up and theres no shaking... so i'm not sure.

ryanw · January 31st, 2012, 03:23 PM

If the car only has 63,000 original miles....... WHY Does it have a new transmission ? That seems wired to me.

delgadog · January 31st, 2012, 03:44 PM

yea, i know, it was weird to me too... i'm not sure. didn't think to ask him that.lol. but he would sell it to me cheap and i'm just concerned about the issues mentioned above... other than that, the paint and bumper are the only other things that are wrong with it and i think it would be a nice car to get cheap.

ryanw · January 31st, 2012, 03:47 PM

How much is cheap ?

delgadog · February 1st, 2012, 12:10 PM

like 2000-2500 cheap.lol. we're both Marines, so he's hookin a brother up.lol.

ryanw · February 1st, 2012, 12:19 PM

Post some pics, but the price seems good

delgadog · February 1st, 2012, 12:39 PM

i don't have any pics yet. front bumper is screwed, he hit a racoon so theres a chunk missing, and then the above issues, so i'm a bit scared about it... paint is a bit faded, but paint doesn't make the car run good or make it faster.

delgadog · February 1st, 2012, 12:39 PM

stang in ur sig looks so sexy. nice mods too. how much hp u pushing and ur times at the track if you don't mind me asking.

ryanw · February 1st, 2012, 02:24 PM

She hasnt been dyno yet, so i have no clue what hp is. Im only on my 3rd tank of gas, so she hasnt been out to much, my rr are a little nosie, if i have time ill try and ajust them this month some time, i have a wife and 2 year old son, so it doesnt leave to much time to work on the car.

My plan is to supercharge it with my tax return, if there is enough money coming back, then ill have her dyno tuned, i didnt want to pay a shop to tune it two different times, so im waiting till is all done.

Trust me when your standing right next to her, shes not that sexy, but thanks

January 31st, 2012, 01:55 PM	#1
delgadog Regular 1997 Mustang GT None yet... Join Date: Dec 2006 Location: Tampa, Fl Posts: 372 iTrader: 0 reviews	couple issues with stang, sputtering and shaking please help!! well, a guy at work at a 1993 GT he's willing to sell me, it has 63k original miles. he said theres just a couple of issues with it. first off, when the engine is cold and he's driving it sputters and hesitates a bit but after the engine warms up it stops. we think it might be the air intake might be fouled and i suggested to take off the air intake and run it with just the TB open (for a short distance) and see if that clears up the issue. The second issue is that in 4th gear around 40mph the entire car starts to shake, after it passes 40mph the shaking stops... idk whats wrong with it, but i think it could be motor and transmission mounts. He also said the transmission is new, about 2 years old. It has headers and full exhaust and thats about it. the front bumper has a chunk that is missing from hitting a racoon.lol. the bumper is not a factor as i can pick one up relatively cheap. any thoughts on what might be causing these problems? thank you for any help. ps. i'm not all that knowledgeable with these fox 5.0's, i had a 95 and most of the work was already done to it when i baught it. the car i currently own is in my sig. thank you again! __________________ 95 GT - nothing stock on her R.I.P. 97 GT - New hotness: CAI, 70mm TB, TB Plennum, PI Intake comming soon: PI H/C, shorty headers, o/r x, lower car, sub frames, cc plates, torque box kit, rear U/L control arms, NO2 kit 100 shot.

January 31st, 2012, 02:12 PM	#3
delgadog Regular 1997 Mustang GT None yet... Join Date: Dec 2006 Location: Tampa, Fl Posts: 372 iTrader: 0 reviews	the car is a 5spd, all i got from the guy was that in 4th gear around 40mph it shakes. he says in neutral he revs the engine up and theres no shaking... so i'm not sure. __________________ 95 GT - nothing stock on her R.I.P. 97 GT - New hotness: CAI, 70mm TB, TB Plennum, PI Intake comming soon: PI H/C, shorty headers, o/r x, lower car, sub frames, cc plates, torque box kit, rear U/L control arms, NO2 kit 100 shot.

January 31st, 2012, 03:23 PM	#4
ryanw I Post Entirely Way Too Much 1991 Ford Mustang GT Join Date: May 2007 Location: San Diego, California Posts: 6,063 iTrader: 0 reviews	If the car only has 63,000 original miles....... WHY Does it have a new transmission ? That seems wired to me. __________________ DART 331ci stroker, AFR 185 heads, Trick Flow R intake, Accufab 70mm tb, 75mm pro m Maf, 30lb injectors, jba headers, 2 1/2" x pipe flowmaster super 10 mufflers, 255 fuel pump, 3:27 gears

January 31st, 2012, 03:44 PM	#5
delgadog Regular 1997 Mustang GT None yet... Join Date: Dec 2006 Location: Tampa, Fl Posts: 372 iTrader: 0 reviews	yea, i know, it was weird to me too... i'm not sure. didn't think to ask him that.lol. but he would sell it to me cheap and i'm just concerned about the issues mentioned above... other than that, the paint and bumper are the only other things that are wrong with it and i think it would be a nice car to get cheap. __________________ 95 GT - nothing stock on her R.I.P. 97 GT - New hotness: CAI, 70mm TB, TB Plennum, PI Intake comming soon: PI H/C, shorty headers, o/r x, lower car, sub frames, cc plates, torque box kit, rear U/L control arms, NO2 kit 100 shot.

January 31st, 2012, 03:47 PM	#6
ryanw I Post Entirely Way Too Much 1991 Ford Mustang GT Join Date: May 2007 Location: San Diego, California Posts: 6,063 iTrader: 0 reviews	How much is cheap ? __________________ DART 331ci stroker, AFR 185 heads, Trick Flow R intake, Accufab 70mm tb, 75mm pro m Maf, 30lb injectors, jba headers, 2 1/2" x pipe flowmaster super 10 mufflers, 255 fuel pump, 3:27 gears

January 31st, 2012, 02:03 PM	#2
fogged306 MM Fanatic 89 GT Join Date: Apr 2007 Location: NY Posts: 4,875 iTrader: 2 reviews	If you remove the air intake and run open TB, the car won't run right. Air needs to flow through the MAF. If you suspect the filter is dirty, pull it and take a look. You can also pull the MAF and look at the element. If it looks like it has dirt or a film on it, get some MAF cleaner and spray it down. Also check for codes and see what you come up with. Here is a very good write-up on how to check for codes in a fox. Also pull some plugs and take a look at them, and check the wires. Is this an auto or a 5sp? Does the shaking only in 4th gear? Have you tried 3rd gear at 40? Neutral at 40?

February 1st, 2012, 12:10 PM	#7
delgadog Regular 1997 Mustang GT None yet... Join Date: Dec 2006 Location: Tampa, Fl Posts: 372 iTrader: 0 reviews	like 2000-2500 cheap.lol. we're both Marines, so he's hookin a brother up.lol. __________________ 95 GT - nothing stock on her R.I.P. 97 GT - New hotness: CAI, 70mm TB, TB Plennum, PI Intake comming soon: PI H/C, shorty headers, o/r x, lower car, sub frames, cc plates, torque box kit, rear U/L control arms, NO2 kit 100 shot.

February 1st, 2012, 12:19 PM	#8
ryanw I Post Entirely Way Too Much 1991 Ford Mustang GT Join Date: May 2007 Location: San Diego, California Posts: 6,063 iTrader: 0 reviews	Post some pics, but the price seems good __________________ DART 331ci stroker, AFR 185 heads, Trick Flow R intake, Accufab 70mm tb, 75mm pro m Maf, 30lb injectors, jba headers, 2 1/2" x pipe flowmaster super 10 mufflers, 255 fuel pump, 3:27 gears

February 1st, 2012, 12:39 PM	#9
delgadog Regular 1997 Mustang GT None yet... Join Date: Dec 2006 Location: Tampa, Fl Posts: 372 iTrader: 0 reviews	i don't have any pics yet. front bumper is screwed, he hit a racoon so theres a chunk missing, and then the above issues, so i'm a bit scared about it... paint is a bit faded, but paint doesn't make the car run good or make it faster. __________________ 95 GT - nothing stock on her R.I.P. 97 GT - New hotness: CAI, 70mm TB, TB Plennum, PI Intake comming soon: PI H/C, shorty headers, o/r x, lower car, sub frames, cc plates, torque box kit, rear U/L control arms, NO2 kit 100 shot.

February 1st, 2012, 02:24 PM	#11
ryanw I Post Entirely Way Too Much 1991 Ford Mustang GT Join Date: May 2007 Location: San Diego, California Posts: 6,063 iTrader: 0 reviews	She hasnt been dyno yet, so i have no clue what hp is. Im only on my 3rd tank of gas, so she hasnt been out to much, my rr are a little nosie, if i have time ill try and ajust them this month some time, i have a wife and 2 year old son, so it doesnt leave to much time to work on the car. My plan is to supercharge it with my tax return, if there is enough money coming back, then ill have her dyno tuned, i didnt want to pay a shop to tune it two different times, so im waiting till is all done. Trust me when your standing right next to her, shes not that sexy, but thanks __________________ DART 331ci stroker, AFR 185 heads, Trick Flow R intake, Accufab 70mm tb, 75mm pro m Maf, 30lb injectors, jba headers, 2 1/2" x pipe flowmaster super 10 mufflers, 255 fuel pump, 3:27 gears

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