Question about Chevrolet Silverado 1500
Recently changed fuel pump and filter. V6 motor has lousy response once you hit the throttle. Seems as if it is not getting enough fuel. Any suggestions?
Chech you fuel presure should be around 52 psi +- 10psi,,, and filter
Posted on May 28, 2015
Remove the Throttle Body and Clean ALL Black Carbon and all Tiny Fuel / air Jet Holes, ...This is assuming the Timing Train is Tight and chain is tight,
Posted on May 12, 2015
Run fault codes and look for throttle position sensor problem. cat converter problems are apparent at high RPM's under load as the cat converter blocks the exhaust pipe.
Posted on Nov 17, 2013
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Posted on Jan 02, 2017
SOURCE: my engine seems like it
there area few different problems that can cause this to happen. If the check engine light is on, you can take it to a local auto parts store, and they will have a basic OBD II scanner and usually can point ya in the right direction as to where the problem is. Personally I would start with checking the throttle position sensor, these are notorious for going out on the 3.8.
Posted on Aug 05, 2008
SOURCE: PO420 CODE ON CHEVY S10
The code means---
Please make sure there is no air entering the engine behind the maf, such as a vacuum leak or leaks in ducting between the maf and the throttle body.
If that's no the case then its an issue with injectors clogging and they are not working due to "fretting". This "fretting" is electrical terminals to injectors getting oxidation on them and is fixed by unplugging them and replugging them in. The fix is to put a small dab of die-electric grease on the terminals.
I would suggest an injector service with the new GM procedure using "Top Engine Cleaner". This may be all you need but that P0420 bothers me. P0420, Catalyst System Efficiency Below Threshold, can be set by a poor connection at the PCM or a damaged wiring harness.
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Posted on Mar 01, 2009
Check your vaccum lines around the TBI. One may be loose and that will keep u from gaining power! Hope this gets u right!
Posted on Apr 21, 2009
fuel pump is on the engine or either in the gastank follow the fuel line chevys are the easiest auto to work on a new i think yours is in your tank remove both straps and remove hose to filler neck. the fuel **** is in the center of th tank removed by a lock washer system holding the pump in also be careful that you follow the fuel lines though and that you remove bolts that hold the fuel ine to the frame and up to the engine or fuel filter then engine an up to the carb that way you can lower tank without bending fuel line any way however you took it off put it back if a human put this thing together then a human can fix it
Posted on Jun 09, 2009
SOUND LIKE FUEL FILTER STOPPED UP.WEAK FUEL PUMP.CHECK FUEL PRESSURE.IT SHOULD BE 60 TO 66 PSI.ALSO CHECK VACUUM LINE GOING TO FUEL PRESSURE REGULATOR.MAKE SURE ITS GETTING VACUUM.IF YOU GAS IN VACUUM LINE GOING TO FUEL PRESSURE REGULATOR.REGULATOR FAULTY.IF YOUR ENGINE IS 4.3 FUEL PRESSURE SUPPOSE TO BE EITHER 41 - 47 PSI AND 58 - 64 PSI
Posted on Apr 12, 2010
Testimonial: "thanks will check it out some guy menchen something call the spider i gus it for the injecters"
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