Question about Chevrolet 1500

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MY TRUCK IS A CHEV Z71 1998 WITH 5.7 ENGINE THE WHOLE STORY IS THIS ...IT STARTED RUNNING ROUGH WHILE I WAS DRIVING HOME ON THE INTERSTATE IT WOULD NOT TAKE GAS BUT WOULD IDLE AT STOP LIGHTS.I CHANGED THE PLUGS AND WIRES...NO HELP...HOOKED IT TO OBD2 DIAGNOSTIC AND THE CODE WAS P0452 I CHANGED THE FUEL SENSOR ON TOP OF THE TANK...NO HELP..CHANGED THE KNOCK SENSOR...NO HELP SO NOW I DON'T HAVE A CLUE IDLES OK BUT SHAKES BADLY WHEN IT IS IN GEAR. IT WILL REV AT 3000 RPM AND I STILL SMELL GAS.

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  • momanem May 30, 2010

    MY TRUCK IS A CHEVMY TRUCK IS A CHEV Z71 1998 WITH 5.7 ENGINE THE WHOLE STORY IS THIS ...IT STARTED RUNNING ROUGH WHILE I WAS DRIVING HOME ON THE INTERSTATE IT WOULD NOT TAKE GAS BUT WOULD IDLE AT STOP LIGHTS.I CHANGED THE PLUGS AND WIRES...NO HELP...HOOKED IT TO OBD2 DIAGNOSTIC AND THE CODE WAS P0452 I CHANGED THE MoreMY TRUCK IS A CHEV Z71 1998 WITH 5.7 ENGINE THE WHOLE STORY IS THIS ...IT STARTED RUNNING ROUGH WHILE I WAS DRIVING HOME ON THE INTERSTATE IT WOULD NOT TAKE GAS BUT WOULD IDLE AT STOP LIGHTS.I CHANGED THE PLUGS AND WIRES...NO HELP...HOOKED IT TO OBD2 DIAGNOSTIC AND THE CODE WAS P0452 I CHANGED THE FUEL SENSOR ON TOP OF THE TANK...NO HELP..CHANGED THE KNOCK SENSOR...NO HELP SO NOW I DON'T HAVE A CLUE IDLES OK BUT SHAKES BADLY WHEN IT IS IN GEAR. IT WILL REV AT 3000 RPM AND I STILL SMELL GAS. THE LAST EXPERT SAID TO TRY CHANGING THE FUEL PUMP BUT THAT'S ANOTHER $500 IN ADDITION TO THE $200.00 I'VE ALREADY SPENT.

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Hmm did you check your mass air flow sensor and your throttle body position sensor ???

also have a look at your engine mounts ....

pop hood,, have someone start the vehicle,, look at the engine for movement.. put in drive and see if the engnie moves,, then reverse,, then neutral,, press brake and then acclerator,, the gears will now be hard to change back.. well i guess you know what your looking for so..

try those and let me know..

Posted on May 30, 2010

  • momanem May 30, 2010

    NOTHING WRONG WITH MOTOR MOUNTS/ WOULDN'T THOSE OTHER SENSORS SHOW UP ON THE OBD2?

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Try changing the fuel pump.

Posted on May 30, 2010

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May 30, 2010 - MY TRUCK IS A CHEVMY TRUCK IS A CHEV Z71 1998 WITH 5.7 ENGINE THE WHOLE STORY IS THIS ...IT STARTED RUNNING ROUGH WHILE I WAS DRIVING HOME ON THE INTERSTATE IT WOULD NOT TAKE GAS BUT WOULD...


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