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1997 chevy malibu 3.1 runs rough
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cliffduris
Novice
Sep 24, 2014, 2:11 PM
Post #1 of 13
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1997 chevy malibu 3.1 runs rough
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1997 chevy malibu 3.1 with 142,000mi new sparkplugs & wires gapped at 060 and 5,000 to 6,000 ohms at all coils however acts like it is missing runs awhile but turns off
(This post was edited by cliffduris on Sep 24, 2014, 2:22 PM)
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Hammer Time
Ultimate Carjunky
/ Moderator
Sep 24, 2014, 3:24 PM
Post #2 of 13
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Re: 1997 chevy malibu 3.1 runs rough
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Have it scanned for codes and post the code numbers here.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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cliffduris
Novice
Sep 24, 2014, 4:02 PM
Post #3 of 13
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Re: 1997 chevy malibu 3.1 runs rough
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P0300 before plugs&wires
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Hammer Time
Ultimate Carjunky
/ Moderator
Sep 24, 2014, 4:20 PM
Post #4 of 13
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Re: 1997 chevy malibu 3.1 runs rough
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Any history, any work recently done? Any overheating?
What led up to this?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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cliffduris
Novice
Sep 24, 2014, 4:47 PM
Post #5 of 13
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Re: 1997 chevy malibu 3.1 runs rough
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no overheating the tensioner pulley broke i replaced it new , both idler pulleys new and new serpantene belt. also less than a year ago a new fuelpump&filter, frequent oil changes must tell you code was before the problem had plugs&wires ordered they arrived the day my wife broke down towed home hoping they were the solution now she runs for a couple of minutes and shuts down.Im tring not to run her to much afraid of expensive repairs
(This post was edited by cliffduris on Sep 24, 2014, 4:54 PM)
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Discretesignals
Ultimate Carjunky
/ Moderator
Sep 24, 2014, 4:49 PM
Post #6 of 13
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Re: 1997 chevy malibu 3.1 runs rough
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I'd say your going to need to get hold of an enhanced scan tool to look at misfire counters to see which cylinders are skipping.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Sep 24, 2014, 4:49 PM)
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cliffduris
Novice
Sep 29, 2014, 2:03 PM
Post #7 of 13
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Re: 1997 chevy malibu 3.1 runs rough
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ok borrowed a scanner tool now the code is p0305 and p0305pd which means mutiple misfires on #5 it also lists misfire,fuel,comp,catlyst,evap,o2 snsr,o2 htr,egr Also on sat i ordered both crank sensors and a cam sensor.
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cliffduris
Novice
Sep 29, 2014, 7:50 PM
Post #9 of 13
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Re: 1997 chevy malibu 3.1 runs rough
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The #5 spark plug wire had a hole arcing at the exhaust shroud noticed when replacing them ordered the three sensors from RA for 30 bucks could not hurt I thought.  However I borrowed the tool from a buddy at work.I also already pulled the PS pump for the cam, and the harmonic balancer crank pulley to access the cam sensor will replace and see what happens crank2 right at backside of the block easy access!!
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cliffduris
Novice
Oct 11, 2014, 9:55 AM
Post #11 of 13
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Re: 1997 chevy malibu 3.1 runs rough
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well i installed the sensors and now it runs for a few seconds then cuts off. so i borrowed an advanced tool from az. now there are no codes probably due to the fact the battery went dead had to hook up the charger. started it a few times still runs rough,now the scanner says misfire monitor-ok, fuel system mon-ok,comp component-ok, catalyst-inc, evap system mon-inc, oxygen sens mon-inc, oxygen sens htr-inc, and a handfull of n/a's
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Hammer Time
Ultimate Carjunky
/ Moderator
Oct 11, 2014, 10:04 AM
Post #12 of 13
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Re: 1997 chevy malibu 3.1 runs rough
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That is not an advanced scan tool. AZ has nothing even close to what was recommended here. You're comparing $500 tools to a $5,000 tool. You can't get the data you needs with that tool.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Discretesignals
Ultimate Carjunky
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Oct 11, 2014, 2:19 PM
Post #13 of 13
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Re: 1997 chevy malibu 3.1 runs rough
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I think it is time you had a licensed reputable repair shop look at this. You just throwing a bunch of parts at it and in the process making more problems.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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