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2000 ls 3.0 missfire please help
by josh40
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Apr 15, 2009 (10:54 am)
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i have a 2000 ls i replaced all plugs and cops but still misses under load once up to temp any suggestions
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- #2 of 17
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Re: 2000 ls 3.0 missfire please help [josh40]
by akirby
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Apr 15, 2009 (11:25 am)
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Replying to: josh40 (Apr 15, 2009 10:54 am)
Fuel filter? Fuel pump(s)?
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- #3 of 17
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Re: 2000 ls 3.0 missfire please help [akirby]
by josh40
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Apr 15, 2009 (11:56 am)
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Replying to: akirby (Apr 15, 2009 11:25 am)
i dont think so ihave 40 psi at an idel and if it was a filter issue i would think it would do it cold or warm
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- #4 of 17
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Re: 2000 ls 3.0 missfire please help [josh40]
by akirby
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Apr 15, 2009 (12:17 pm)
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Replying to: josh40 (Apr 15, 2009 11:56 am)
But did you check the pressure under load at higher RPM? May be ok at idle. Bad fuel pump is a common (but not widespread) problem.
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- #5 of 17
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Re: 2000 ls 3.0 missfire please help [akirby]
by josh40
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Apr 15, 2009 (1:28 pm)
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Replying to: akirby (Apr 15, 2009 12:17 pm)
no but i dont have to be going down the road if i just pull it back into drive it will start missing ive red on here about others having there comuters reflashed is there some issue with them or something that would link it in with my problem
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- #6 of 17
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Re: 2000 ls 3.0 missfire please help [josh40]
by toomanyfumes
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Apr 15, 2009 (4:04 pm)
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Replying to: josh40 (Apr 15, 2009 1:28 pm)
Did you check the PCV valve and hose when you had the intake manifold off?
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- #7 of 17
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Re: 2000 ls 3.0 missfire please help [toomanyfumes]
by josh40
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Apr 16, 2009 (4:40 am)
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Replying to: toomanyfumes (Apr 15, 2009 4:04 pm)
yes ive checked every thing and still not sure
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- #8 of 17
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Re: 2000 ls 3.0 missfire please help [josh40]
by akirby
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Apr 16, 2009 (4:52 am)
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Replying to: josh40 (Apr 16, 2009 4:40 am)
Did you replace the PCV valve? Do that first. I forgot about that because it's not on the V8s. It will cause those symptoms.
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- #9 of 17
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Re: 2000 ls 3.0 missfire please help [akirby]
by josh40
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Apr 16, 2009 (5:07 am)
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Replying to: akirby (Apr 16, 2009 4:52 am)
ill try that now let u no thanks
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- #10 of 17
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Re: 2000 ls 3.0 missfire please help [josh40]
by josh40
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Apr 16, 2009 (5:19 am)
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Replying to: josh40 (Apr 16, 2009 5:07 am)
tryed that it didnt change anything
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