1997 Chevy Astro Astro start fine, run fine on idle, but no

1997 CHEVROLET ASTRO
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ZEUS
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Engine problem
1997 Chevy Astro V6 Two Wheel Drive Automatic 210000 miles
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Astro start fine, run fine on idle, but no power, stall if i give to much gas
I change already
distributor cap and rotor, spark plug wire, gas filter
still the same problem
i check egr valve but look clean and not jam

Please help?
Dec 8, 2007 at 2:07 PM
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OTBLVR52
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You did not say if the service engine soon light was on but I have two suggestions.

#1 It is possible to have an exhaust restriction that will cause loss of power. Use a vacuum gage. Check vacuum at idle and then increase speed to around 2000 rpm and check guage again. If vacuum falls toward zero more than a couple of inches, suspect that you have an exhaust restriction.

#2 Due to the high mileage reported, it is possible for the timing chain to jump one or two teeth and the engine continue to run but have no power. You will have to pull timing chain cover to inspect and I would go ahead and replace timing chain and gears for routine maintenance.

Hope this helps
OTBlvr52
Dec 16, 2007 at 10:50 AM
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CHUBBER22
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My 96 was stalling out as I accelerated it was the catalytc convertor changed it to a magna flow odbcII $80 at part source same at can tire.

Regards,

Chubber22
Dec 29, 2007 at 12:59 PM
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