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#1
08-17-2006, 10:20 PM
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01' Rodeo p300 code/Randm mtpl cylndr msfire, HELP!!!!
Hey, been trouble shooting this prob for about six months. Have changed plugs from demso uridium (which came into my life one year ago) to champ got beter and then worse. I messed with the egr vlv, have had problems there before. I've cleaned all coil packs conections. PLEASE IF YOU KNOW ANYTHING LET ME KNOW I'LL TRY ANYTHING AT THIS POINT!!!!
  Andy 
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#2
08-18-2006, 09:22 AM
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Re: 01' Rodeo p300 code/Randm mtpl cylndr msfire, HELP!!!!
a leaky intake manifold gasket can give you misfire codes. If you are the first owner the IMG is covered for 120k.
__________________
-Ryan Isuzu Moderator Car Show Tips Operations manager with a results-driven passion for process improvement FAQ 98-04 Isuzu Rodeo, Rodeo Sport, Amigo, Trooper SOLD - NOV2015 - 2000 Amigo, V6, HT winter, ST summer, 2wd
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#3
08-19-2006, 10:23 PM
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Re: 01' Rodeo p300 code/Randm mtpl cylndr msfire, HELP!!!!
How would I know if that is the problem? The engine is really starting to run bad. It almost seems that replacing the plugs and cleaning the egr valve has made the problem worse. OH, and I am not the first owner I got teh truck with 8K used and have 78K on it now.
I have been told that it could be my ignition controle mod. or multiple coil packs going bad. Each coil pac is $107  and the dealer wants $775 for the ICM. ANY THOUGHTS?desprate for a fix!!  
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#4
08-19-2006, 11:14 PM
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Re: 01' Rodeo p300 code/Randm mtpl cylndr msfire, HELP!!!!
I second the IMG.
Listen closely for hissing sounds around that area when the engine is running. Also you can spray some wd40 or carb cleaner around where the intake manifold runners connect to the heads and see if the idle changes. If it does then you have leaking IMG.
__________________
--Dave 1999 Rodeo LS 3.2 4x4 5 Speed 32x11.50-15 BFG T/A KO 3" Lift - Rancho 9000x Rear No-Slip Locker Flowmaster 2.25" 50 Series There is a very fine line between "hobby" and "mental illness." - Dave Barry
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#5
08-20-2006, 06:32 PM
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Re: 01' Rodeo p300 code/Randm mtpl cylndr msfire, HELP!!!!
Have any of you ever tried to tackle this img gasket replacement before? if so, I am planning on doing it myself and would appreciate some advice before starting.
Is there any thing else I should replace while i'm in there? Also, how much time do you think I should give myself. Is this doable in one day? Andy
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01' Rodeo 4X4 v6 78K PHX, AZ
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#6
08-20-2006, 06:33 PM
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Re: 01' Rodeo p300 code/Randm mtpl cylndr msfire, HELP!!!!
Have any of you ever tried to tackle this img gasket replacement before? if so, I am planning on doing it myself and would appreciate some advice before starting.
Is there any thing else I should replace while i'm in there? Also, how much time do you think I should give myself. Is this doable in one day? Andy
__________________
01' Rodeo 4X4 v6 78K PHX, AZ
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