I have a 1996 Cobra with 71,000 miles on it. I got it about 2 months ago and it has had a hesitation at 3200 RPM, just slightly. I tore down the engine to my IMRC and cleaned them up real good, then I put some seafoam through it and that didnt' fix it either. I have new autolite plugs in it and just put new coil packs, but that all made it worse today. It also has a real bad bounce and hesitation if I'm in a high gear and hit it at lower RPM's like its flooding out. If you have any answers that would be great...thank you in advance
JOSH
I had a 92 ford taurus sho that had the almost the same symtoms, i replaced the fuel pump and fuel pressure regulator and that did the trick for me. idk if it will fix it for you but i think your on the right track.
No CEL?
You sure the IMRCs are opening, the controller could be broken
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1998 SVT Cobra #4941 of 5174 built on June 19,1998
4.30s, Speedcal, WMS CAI, Pro 5.0 shifter, Sniper Tuner, March pulleys, Mac O/R H pipe, Flowmaster orig. 40's, King Cobra clutch, D/S rotors, FRPP 9mm's, Max. Motorsports C/C plates, Termy front control arms, H&R SS springs, MM solid steering rack bushings, Tokico HP struts and shocks, Mac subrames, HID Bi-Xenon 6000k kit, Saleen 18" wheels, Saleen S-281 spoiler, sequential tails
Up Next: Termi diff, 31 spline Axles, LPW girdle, MM LCAs
When was the last time you replaced the fuel filter? Also do you have some numerically high gears? If not, trying to floor it in a high gear at low rpms will make any car bog or bounce. If i put my car in 6th gear at 1500rpms with stock gears, it'll bounce and bog. My 05 GT with 4.30's, i could do 25mph and put it in 5th and be fine.
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1995 Mustang GT-Heavily Modded-Sold 2003 Ford Lightning-Sold 1997 Saleen-5.4 conversion-Sold 2005 Mustang GT-Torch Red-Sold 2003 Mustang Cobra-Oxford White 2003 4Runner V8 Sport Edition 4X4
If it happens at 3200 RPMs, it's not the fuel filter.
It's definitely something to do with the IMRCs.
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1998 SVT Cobra #4941 of 5174 built on June 19,1998
4.30s, Speedcal, WMS CAI, Pro 5.0 shifter, Sniper Tuner, March pulleys, Mac O/R H pipe, Flowmaster orig. 40's, King Cobra clutch, D/S rotors, FRPP 9mm's, Max. Motorsports C/C plates, Termy front control arms, H&R SS springs, MM solid steering rack bushings, Tokico HP struts and shocks, Mac subrames, HID Bi-Xenon 6000k kit, Saleen 18" wheels, Saleen S-281 spoiler, sequential tails
Up Next: Termi diff, 31 spline Axles, LPW girdle, MM LCAs
1996 Mustang Cobra Hesitation Problem 
