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Markbo
Mark Potter
Joined: 13 May 2002
Posts: 2329
Location: Tomball
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 Posted: Tue, Dec, 29, 2009, 3: 06 pm Post subject: How do I trace the problem? |
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I have had an SES light and a stumble. Hooked it up to a basic scanner and have a misfire in bank one - passenger side. Couldn't tell me what it was... I already knew I had a misfire.
What's the best way to trace it, just pull one coil wire at a time then one injector wire at a time until nothing changes and that is the problem?
FWIW I changed all 4 O2 sensors a year, year and half ago so I am pretty sure they are not at fault. Got no O2 fault.
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Ken Wilson
RUNVS
Joined: 10 May 2002
Posts: 8753
Location: Houston, TX
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| Posted: Tue, Dec, 29, 2009, 3: 38 pm Post subject: |
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Best way is to use a coil pack/plug tester (flyswatter) with someone in the cab to manipulate the throttle while you're testing. You can do all eight COPS in less than a minute.
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Ken Wilson
"Anything less than a Lightning becomes prey."
403 RWHP / 518 RWTQ |
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Markbo
Mark Potter
Joined: 13 May 2002
Posts: 2329
Location: Tomball
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| Posted: Tue, Dec, 29, 2009, 5: 03 pm Post subject: |
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Never heard of that... where can I get one or borrow one?
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'02 number 924 of 4726
People sleep peacefully because rough men stand ready to do violence on their behalf.- Orwell |
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Ken Wilson
RUNVS
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Posts: 8753
Location: Houston, TX
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Andre Terranova
The Republic of TEXAS
Joined: 09 May 2002
Posts: 14227
Location: Brookshire TX
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| Posted: Wed, Dec, 30, 2009, 7: 18 am Post subject: |
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Pull all 4 plugs on bank 1 side and check them. Buy Flyswater, or come to Brookshie and let me check them.
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Markbo
Mark Potter
Joined: 13 May 2002
Posts: 2329
Location: Tomball
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| Posted: Wed, Mar, 17, 2010, 12: 14 pm Post subject: |
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Just a follow up in case anyone is interested. I pulled all the plugs on bank one and they looked fine. On the suggestion of a mechanic, I did on induction service, i.e. SeaFoam into the top end via vacuum line
Slowly, slowly sucking it in there was not much smoke. Took it outside anad ran it down the road and the smoke stopped traffic!
Besides just being a fun run, the stumble disappeared and has not come back... neither has the code and all operating parameters are fine.
JKust needed a little cleaning!
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'02 number 924 of 4726
People sleep peacefully because rough men stand ready to do violence on their behalf.- Orwell |
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Jerrod Gross
99SVT
Joined: 09 May 2002
Posts: 8960
Location: La Grange
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| Posted: Wed, Mar, 17, 2010, 12: 36 pm Post subject: |
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| Markbo wrote: | Just a follow up in case anyone is interested. I pulled all the plugs on bank one and they looked fine. On the suggestion of a mechanic, I did on induction service, i.e. SeaFoam into the top end via vacuum line
Slowly, slowly sucking it in there was not much smoke. Took it outside anad ran it down the road and the smoke stopped traffic!
Besides just being a fun run, the stumble disappeared and has not come back... neither has the code and all operating parameters are fine.
JKust needed a little cleaning! |
and, you took care of the mosquitos for the season too. 
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"Thunder does the talkin', but Lightning kicks the a$$"
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bet on black
Glenn Clements Jr
Joined: 17 Sep 2003
Posts: 1248
Location: Houston, TX
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| Posted: Wed, Mar, 17, 2010, 1: 25 pm Post subject: |
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Don't forget to change your oil now
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Markbo
Mark Potter
Joined: 13 May 2002
Posts: 2329
Location: Tomball
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| Posted: Wed, Mar, 17, 2010, 1: 32 pm Post subject: |
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Done!
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'02 number 924 of 4726
People sleep peacefully because rough men stand ready to do violence on their behalf.- Orwell |
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