05-18-2011, 08:13 PM | #1 |
Trunk Monkey
Join Date: Jun 2007
Location: Home
Posts: 5,708
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Got a strange problem here...
Ok, I've had this problem with my coupe for awhile, and it's bugging the crap out of me. At about 1/3 throttle or so, I've got a power surge of sorts. There's no miss or popping, it runs smooth, it feels like the A/C compressor is cycling on and off (but it's not turned on). It only does it at that point of the throttle regardless of speed, but it's more noticable on the highway in OD. The TPS checks out ok. The ignition system is fine, as well as the fuel system (I've gone over all the basic stuff) as far as I know. The one thing that might be suspect, but I have yet to try taking off, is the Hypertech chip/module that's on the computer. I've been meaning to take that POS off considering it really does nothing for power, but it's ran fine with it until now, other than that I don't know . Any ideas?
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Eric 89 LX Coupe-Juiced 01 Lightning-Boost 06 TBSS |
05-18-2011, 09:33 PM | #2 |
3v's are slow
Join Date: Dec 2004
Location: Here and There
Posts: 17,152
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Could it be something in the tranny?
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05-18-2011, 09:36 PM | #3 |
pro-jackstand racer
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that's what I was thinking...trans perhaps O/D band slipping maybe
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And God created Neil Peart so that lightning would make sense to the world.
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05-18-2011, 09:53 PM | #4 |
Trunk Monkey
Join Date: Jun 2007
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It may be, although it still pulls strong and doesn't feel like it's slipping. I wouldn't rule that out though, It's just weird how it does it at that point in the throttle and around 3000 RPM's.
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Eric 89 LX Coupe-Juiced 01 Lightning-Boost 06 TBSS |
05-19-2011, 04:40 AM | #5 |
Dayuuuuuuum!!!!!
Join Date: Dec 2004
Location: Dallas GA
Posts: 2,933
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Check the bushing on the tb for the tv cable. I've seen this issue before when the bushing becomes worn or cracked.
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86 Mustang Gt......Mods piling up in my garage.
07 F350 dooly.....Tows my fifth wheel |
05-19-2011, 05:33 AM | #6 |
pro-jackstand racer
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And God created Neil Peart so that lightning would make sense to the world.
~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
05-19-2011, 09:40 AM | #7 |
Trunk Monkey
Join Date: Jun 2007
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Posts: 5,708
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Will do, although I've got the good bronze/brass one on there. That would make sense though.
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Eric 89 LX Coupe-Juiced 01 Lightning-Boost 06 TBSS |
05-20-2011, 07:08 PM | #8 |
Gizmo
Join Date: Jul 2006
Location: Gardendale, Al
Posts: 272
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I've seen some instances where "Chips" have been installed and it cracked the circuit board in the PCM. Had a 98 or 99 V6 Mustang at the dealer I worked at that would randomly shut off because of it. Pulled the PCM and found a SuperChip in the back.
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94 Mustang GT 89 Ranger XLT 96 F150 XLT 04 Crown Vic |
05-20-2011, 10:05 PM | #9 |
Trunk Monkey
Join Date: Jun 2007
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I'm going to pull that chip/module out and see what happens. The TV cable bushing is fine.
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Eric 89 LX Coupe-Juiced 01 Lightning-Boost 06 TBSS |
05-21-2011, 02:40 PM | #10 |
Gizmo
Join Date: Jul 2006
Location: Gardendale, Al
Posts: 272
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how long has the TV Cable been on the car? Sometimes they tend to stretch...
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94 Mustang GT 89 Ranger XLT 96 F150 XLT 04 Crown Vic |
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