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93 gmc 4x4 serria acts like it is running out of gas .


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janhilleary
New User

Sep 15, 2008, 8:47 PM

Post #1 of 3 (2154 views)
93 gmc 4x4 serria acts like it is running out of gas . Sign In

have changed fuel filter and found and replaced distributor cause of a crack. now it sputters and makes a popping noise and then runs ok then sputters again and popps and etc. the fuel pressure is good so it's not the fuel pump. it does this intermittently. then runs ok. if i let up on the gas it sorta straightens out and runs right. i need help to get this thing resolved. any ideas? thanks


(This post was edited by janhilleary on Sep 18, 2008, 9:29 PM)


mike_sch
New User

Jan 11, 2009, 5:55 PM

Post #2 of 3 (1937 views)
Re: 93 gmc 4x4 serria acts like it is running out of gas . Sign In

mine is doing the same thing have u checked your map sensor. i unpluged my map sensor vacum hoes and see if it will start mine does but when i put it in gear it dies.


Rosebud
Anonymous Poster
rosebud-73@hotmail.com

Jun 6, 2009, 9:41 AM

Post #3 of 3 (1766 views)
Re: 93 gmc 4x4 serria acts like it is running out of gas . Sign In

Hello my 1990 Gmc did basically the same thing I replacwd the cap, rotor and plugs. No difference. Mine was very erratic. Then I changed the plug wires. I couldn't believe the difference.Never seen plug wires be so erratic. Hope it helps.






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