BUCKS at low torque
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Member
Joined: Feb 2008
Posts: 348
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From: Pensacola, Florida
Car: 88 IROC Z Vert CZA3
Engine: LB9 5.0 tpi
Transmission: MM5 5 spd
Axle/Gears: G92 Performance
BUCKS at low torque
A solution to the following issue (which pizzez me off) continues to elude us:
- Car bucks at low torque but the problem continues at higher rpm but is somewhat masked.
- Acts like its loading up or starving – no smoke
- Perfect at idle – touch the peddle & it whacks out
- Has power but not smooth power
- Odd odor at exhaust
Vehicle: 1988 IROC-Z, 5.0 tpi, 5 spd. The car sat in my garage +/- 4 years without any starts.
What’s been done
- Fuel tank drained & wiped.
- New: Fuel Pump, Fuel Filter, Air Filer, Plugs, MAF, CTS.
What’s been checked:
- Plug Wires, Cap, Rotar,
- Vacuum,
- TPS (changed it & it got worse so re-installed orig),
- Fuel Pressure within spec.
- No error codes
Any ideas or suggestions will be most appreciated
- Car bucks at low torque but the problem continues at higher rpm but is somewhat masked.
- Acts like its loading up or starving – no smoke
- Perfect at idle – touch the peddle & it whacks out
- Has power but not smooth power
- Odd odor at exhaust
Vehicle: 1988 IROC-Z, 5.0 tpi, 5 spd. The car sat in my garage +/- 4 years without any starts.
What’s been done
- Fuel tank drained & wiped.
- New: Fuel Pump, Fuel Filter, Air Filer, Plugs, MAF, CTS.
What’s been checked:
- Plug Wires, Cap, Rotar,
- Vacuum,
- TPS (changed it & it got worse so re-installed orig),
- Fuel Pressure within spec.
- No error codes
Any ideas or suggestions will be most appreciated
Last edited by gatorcola; Jun 26, 2008 at 01:28 PM.
Junior Member
Joined: Oct 2007
Posts: 96
Likes: 0
From: Astoria, N.Y.
Car: 1986 Z28 Camaro, 2002 Audi A4 (DD)
Engine: 350 .30 over w/bang for buck combo
Transmission: 700r4
Axle/Gears: stock for now
Re: BUCKS at low torque
possibly could be the computer going?... just throwing it out there..
Supreme Member
iTrader: (2)
Joined: Aug 2007
Posts: 2,529
Likes: 1
From: Fairhope, AL
Car: 89RS(other cars & pics in vBgarage)
Engine: LO3, 305 TBI Mildly Modified
Transmission: BakerBuilt 700R4 w/B&M Megashifter
Axle/Gears: 3.23 Auburn Pro Series LSD
Re: BUCKS at low torque
an EGR messing up can cause this, i would investivate it
Thread Starter
Member
Joined: Feb 2008
Posts: 348
Likes: 0
From: Pensacola, Florida
Car: 88 IROC Z Vert CZA3
Engine: LB9 5.0 tpi
Transmission: MM5 5 spd
Axle/Gears: G92 Performance
Re: BUCKS at low torque
I've this issue with my ride for over a year. After 4 mechanics failed to find the problem, I took her to a local Chevy dealer and they have diagnosed the problem. IT'S WHAT 89RS_82Z SAID IT WAS 9 MONTHS AGO. A bad EGR valve.
Dang, I wish you would open a shop over here. I'd be your loyal customer.
Dang, I wish you would open a shop over here. I'd be your loyal customer.
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