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Problems again!? -FIXED AGAIN!-

 
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kp_432
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PostPosted: Sat Aug 18, 2012 6:37 pm    Post subject:  Problems again!? -FIXED AGAIN!- Reply with quote

04 as 3.8 SC engine is reving up at idle? Out of town right now be back tonight to look at the car. Any suggestions? Thanks

UPDATE-While driving the car just shuts down and dies. Thinking the MAF sensor is shot but dont know how to tell. Any suggestions? Thanks


Last edited by kp_432 on Mon Sep 03, 2012 9:17 pm; edited 4 times in total
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outonthetiles
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PostPosted: Sat Aug 18, 2012 6:42 pm    Post subject:   Reply with quote

Probably a vacuum leak somewhere.

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PostPosted: Sun Aug 19, 2012 7:47 pm    Post subject:   Reply with quote

MAF sensor?

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kp_432
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PostPosted: Thu Aug 23, 2012 12:42 am    Post subject:   Reply with quote

FIXED-The problem was the vaccum line from the MAF sensor was melted, had some OEM lines laying around so easy fix. Scary thing was after replacements she still ran like before (high rpm @idle) and sounded like the air intake was plugged. I disconnected neg batt. and cleanded out air filter (stock K&N) put her all back togther she ran with no codes showing, been running like that since Sun. Figured I reseted PCM or MAF. But She was so bad I thought it was the trans. but sure enough it was once again the vacuum lines. Hopefully I didn't mess up the MAF sensor but She is running pure.
Thanks



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kp_432
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PostPosted: Mon Aug 27, 2012 1:37 pm    Post subject:   Reply with quote

Could the PCV valve cause this? thanks Not throwing any codes by the way, she just dies in the middle of driving.
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IffyG
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PostPosted: Tue Aug 28, 2012 11:44 am    Post subject:   Reply with quote

The car cutting out while driving could also be a bad crankshaft position sensor. When mine went out it wasn't throwing a code, so it was a pain in the ass to get it diagnosed.

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kp_432
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PostPosted: Tue Aug 28, 2012 12:04 pm    Post subject:   Reply with quote

Crankshaft position sensor? Checking it out right now. Do you remeber cost and was it easy to replace? She hasn't done it again yet. Thanks
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IffyG
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PostPosted: Tue Aug 28, 2012 12:07 pm    Post subject:   Reply with quote

Mine went out before I started doing the DIY thing, but IIRC it was around 300 bucks to have the dealer fix it for me.

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PostPosted: Tue Aug 28, 2012 12:09 pm    Post subject:   Reply with quote

They run about $40 its way worth it if that's the problem for me...just gotta figure out where the heck it is at. Thanks
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PostPosted: Tue Aug 28, 2012 12:11 pm    Post subject:   Reply with quote

FWIW, when mine was bad, the car would be chugging along just find and all of the sudden the engine would shut down. Happened to me about half a dozen times with the exact same symptoms.

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outonthetiles
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PostPosted: Tue Aug 28, 2012 2:52 pm    Post subject:   Reply with quote

Its behind the harmonic balancer. I believe you need to pull it to replace the cps.

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kp_432
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PostPosted: Tue Aug 28, 2012 3:04 pm    Post subject:   Reply with quote

outonthetiles wrote:
Its behind the harmonic balancer. I believe you need to pull it to replace the cps.


Thanks Ill check into that when I get off of work today.
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kp_432
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PostPosted: Sat Sep 01, 2012 10:42 pm    Post subject:   Reply with quote

Alright it sounds like the throttle body was clogged I took off the screen and resented PCM and everything ran fine. I think its the PCM she'll start acting up the once I disconnect battery for a while start her up she runs like a champ. Idk that's my best guess. Thanks.
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kp_432
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PostPosted: Mon Sep 03, 2012 9:16 pm    Post subject:   Reply with quote

Well She would start dying when going down on RPM's I mean just KILL out in the middle of drive. Did some research and found out that trying to clean out the MAF sensor is a start before actually replacing the sensor. Did just that with rubbing alcohol, she was dirty by the way, and I cant get her to stall out again. Hopefully this will hold her until my new one comes in. Thanks
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