04-08-2008, 09:24 PM
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#1
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GX Member
Join Date: Feb 2007
Location: new jersey
Posts: 144
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P0304 Random Misfire
So i have a random misfire in cylinder number 4. this is only at idle. when i rev it up even a little bit it goes away. i had it hooked up to a scanner. i checked resistance in my plug wire and thats fine. so im concluded with that its either the coil pack or injector.....  any ideas??? thanks |
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04-08-2008, 09:39 PM
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#2
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GLS member
Join Date: Jun 2007
Location: Utica, Michigan
Posts: 2,227
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4 cylinder or 6 cylinder?
i'd have to agree with a fuel injector or coil pack but it could be because your engine is worn badly or a bad gasket...
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2000 Chevrolet Malibu LS
2000 Oldsmobile Alero GL (sold)
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04-08-2008, 10:01 PM
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#3
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Aleromod Old Fart & Owner
Join Date: Feb 2006
Location: Kerrville, Texas
Posts: 8,114
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What does the plug look like? I just had this happen with my Aurora. It said misfire on 0306, ended up severely fouled plug. How many miles on plugs and coil pack?
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Final 500 #448-OCA Preservation Class Winner, Final 500 Alero #219, '02 Bravada
I am officially addicted to Olds
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04-08-2008, 10:49 PM
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#4
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Aleromod part owner
Join Date: Nov 2003
Location: Far Northeast Philadelphia, PA
Posts: 18,199
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I'm with Oldsnut, I would check the plugs first
$6 a plug over $100 + for a new coil pack or injector and it not fix the problem
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33% ALEROMOD OWNER!!
2000 Olds Alero 3400 SFI 14.53 @ 94.93
1985 Olds Delta 88 307 SBO 17.96 @ 76.99
2007 Volvo V50 T5 6M 15.782 @ 89.12
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04-08-2008, 10:58 PM
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#5
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GLS member
Join Date: Sep 2007
Location: PA
Posts: 1,791
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I triple play that /\
cheaper first !!!
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04-08-2008, 11:02 PM
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#6
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Aleromod Old Fart & Owner
Join Date: Feb 2006
Location: Kerrville, Texas
Posts: 8,114
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Just an eaxample of an exteremely fouled plug. One day it's going good, next 2 weeks it's bad, good for a month the your car runs like it has 1/2 water in the fuel mix. Install new plug and Poof, problem gone and no more codes.
I have found fouled plugs to be more un-predictable than my ex-wife, I know Ken knows what I'm saying there.
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Final 500 #448-OCA Preservation Class Winner, Final 500 Alero #219, '02 Bravada
I am officially addicted to Olds
Last edited by Oldsnut : 04-08-2008 at 11:06 PM.
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04-09-2008, 02:42 AM
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#7
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GL Member
Join Date: Sep 2006
Location: Canada
Posts: 874
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Funny, my ex-wife is very predictable. She gets her money, she's happy, she doesn't, she's a biotch!! VERY predictable.
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04-09-2008, 04:40 AM
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#8
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Aleromod part owner
Join Date: Nov 2003
Location: Far Northeast Philadelphia, PA
Posts: 18,199
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HA HA HA yes I do, Andy
She sucked towards the end of our marriage, well not me
But anyway, yes fouled plugs can be a bitch. Try that first.
Do you have a 2.2, 2.4 or 3.4?
__________________
33% ALEROMOD OWNER!!
2000 Olds Alero 3400 SFI 14.53 @ 94.93
1985 Olds Delta 88 307 SBO 17.96 @ 76.99
2007 Volvo V50 T5 6M 15.782 @ 89.12
www.facebook.com/kb0177
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04-10-2008, 07:19 PM
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#9
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GX Member
Join Date: Feb 2007
Location: new jersey
Posts: 144
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plugs was one of the first things i checked. i listened to the injector through a screwdriver... yes thats what i really did and it sounded like dookie.
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