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05-07-2011, 01:02 AM
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#1 |
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Registered User
Join Date: Dec 2009
Location: edmonton ab
Posts: 73
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2000 4.3 problem
I have a 2000 gmc 1/2 ton with a 4.3l auto. When motor is cold it surges at part throttle (about 35mph), once it warms up it is hardly noticable. Any ideas? I cleaned the maf sensor, changed plugs cap and rotor, fuel pump. Code comes up as random misfire. Runs good at idle and wide open throttle. Thanx for the help
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formerly cooter |
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05-08-2011, 01:02 PM
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#2 |
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Senior Member
 
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,237
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Re: 2000 4.3 problem
Intake gaskets
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David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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05-08-2011, 04:43 PM
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#3 |
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Registered User
Join Date: Dec 2009
Location: edmonton ab
Posts: 73
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Re: 2000 4.3 problem
can you shed some info on why you think its the intake gasket? thanx
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formerly cooter |
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05-13-2011, 01:19 AM
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#4 |
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made in america
Join Date: May 2010
Location: baton rouge la
Posts: 653
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Re: 2000 4.3 problem
id say maybe try your coil
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2005 gmc sierra- 4/6, t56, cammed 5.3. 4.10, big bars, and brakes. sounds good 1964 c10-283 powerpack, 3 on the tree  2004 corvette- lowered, borla, tuned. slow  my old girl 1966 c10- 305v8, t-5 sold |
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