Question about 1999 Chevrolet Silverado 1500
Check the fault codes anyway. Did you do this fuel pressure testing while the loss of power was occurring? If no the test is invalid.
Posted on Apr 20, 2017
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Posted on Jan 02, 2017
One thing to check is the fuel pressure regulator.
If the diaphram is leaking it will cause gas to be pulled into the vacuum system causing lots of white smoke and extreme rough running.
Posted on Mar 03, 2009
SOURCE: accelaration loss of power
I'd have a fuel pressure test done to be sure, it isn't fuel related again. Takes 5 or 10 minutes so cost should be minimal. The other thing that comes to mind is a plugged exhaust. (catalytic converter) Quite possible on a 10yr.old vehicle.
Posted on Apr 11, 2009
Hi! You must be frustrated by now! your code is marking that the O2 sensor is bad in bank 1. Did you replace the O2 sensor that is located before the catalytic converter? The S10 has an O2 sensor specially made for that cat. its about 30$ That would explain for your blackened spark plugs; your pc on the car is asking for more fuel. GOOD LUCK!!
Posted on Apr 29, 2009
I would start looking for a vacuum leak. Check all the vacuum lines for cracks or breakage. Spray penetrating fluid on them until you hear the engine start to stumble then focus the spray on that area until you are able to pinpoint the location of the leak. Best of luck,my friend, Dana
Posted on Aug 31, 2009
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