Air compressor swap and stalling troubles?
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Joined: Jul 1999
Posts: 496
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From: Chicago, IL
Car: 89 IROC-Z
Engine: LB9
Transmission: 700-R4
Air compressor swap and stalling troubles?
Ok I recently changed my air compressor, smog pump, and tensioner pulley due to bad bearings. The only thing I forgot to reinstall was the smog pump gasket. I did not hook up the electrical connectors for the compressor since with no freon that would likely destroy it. Tonight my car stalled 3 times while driving although it seemed to be fighting the stall (although unsuccessfully) The oil pressure and tach would drop steadily and then finally give out. I have no idea why this is happening - could bad valve seals cause it? Usually when my car stalls it will start instantly and run fine. However tonight it continued to have problems with startup and I had to let it rest awhile while I ate at McDonalds. Any ideas? Thanks in advance for advice!
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89 Iroc-Z LB9 305 TPI auto 2.73 posi:
3" Dynomax "cat" back,K&N filters, TB bypass, 3" pipe in place of cat, cleaned and flow-matched injectors, 170' thermo, mild ignition mods, synthetic oil, kicker sound system, soon to have 3.73 posi...
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89 Iroc-Z LB9 305 TPI auto 2.73 posi:
3" Dynomax "cat" back,K&N filters, TB bypass, 3" pipe in place of cat, cleaned and flow-matched injectors, 170' thermo, mild ignition mods, synthetic oil, kicker sound system, soon to have 3.73 posi...
bad valce seals won't cause this problem. i think the ac compressor is tied into the ecm. sorry i don't know any more than that but it's a place to start. try pluging that harness back in and see if it fixes the problem. recharge the ac if you're worried about messing it up, you'll have to sonner or later any way.
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-=ICON MOTORSPORTS=-
1st & 3rd
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-=ICON MOTORSPORTS=-
1st & 3rd
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Joined: Jul 1999
Posts: 13,579
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From: Readsboro, VT
Car: 85 IROC-Z / 88 GTA
Engine: 403 LSx (Pending) / 355 Tuned Port
Transmission: T56 Magnum (Pending) / T5
Axle/Gears: 3.42 / ?
If the belt is overtightened and the clutches on the compressor are seized, it can put additional load on your motor and cause it to stall. Remove the belt and try turning the compressor pulley by hand. (with the car NOT running obviously).
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The IROC Homepage
<A HREF="http://www.rit.edu/~jli4307/camaro" TARGET=_blank>
View the restoration of an 85 IROC</A>
"I didn't know a bored out Ford could go so slow" -Shenandoah
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