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Generation III Internal Engine
car wont rev.

Generation III Internal Engine 1997-2006 LS1 | LS6

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car wont rev.

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Old

Jul 7, 2008 | 08:47 PM

#1

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Launching!

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From: mississippi

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car wont rev.

was running fine. took off water pump because it started to leak while I was right there went ahead and changed the oil pump and the timing chain. car starts right up but seems like when it hits about 1/4 throttle it boggs. and then every other time it seems to go to at least half throttle or better and then bog. .
i unplugged (one at a time) the maf the tps and whatever the other sensor on the throttle body is and it does the same thing.

any ideas?

Old

Jul 7, 2008 | 09:02 PM

#2

TECH Junkie

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From: Upstate of SC

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Do you still have the stock fuel pump?

If you have changed it I bet I know whats wrong with it. If it's stock, go ahead and put a gauge on the fuel rail and check the pressure.

Old

Jul 7, 2008 | 10:25 PM

#3

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Timing chain off a tooth? My first thought.

Old

Jul 7, 2008 | 10:31 PM

#4

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From: Upstate of SC

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very unlikely on the timing chain ... it would still rev fine, now maybe until catastrophic failure

Old

Jul 8, 2008 | 09:01 AM

#5

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I had a Gen I jump time back in the 80's and that is exactly how it ran. It would want to keep running after you turned the key off too so maybe that is a clue.

Old

Jul 8, 2008 | 05:43 PM

#6

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Launching!

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From: mississippi

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car miracuosly fixed itself thanks guys for the input

Old

Jul 8, 2008 | 10:02 PM

#7

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From: Mastic Long Island N.Y.

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Always nice when the miraculous mechanic shows up at night when you are in bed.

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Old

Jul 8, 2008 | 10:14 PM

#8

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I think I saw the Tooth Fairy once when I was little but I never had the Miraculous Mechanic pay me a visit. lol

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