RPM drop at stop
Feb 6, 2019 | 07:57 AM
Thread Starter
Safety Car
Joined: Apr 2017
Posts: 3,708
Likes: 344
From: Texas By God
RPM drop at stop
I have a new problem my 05 Z51 when I come to a stop the RPMs will drop to 3-500 then returns to 700. Feels like is going to stall but does not. Is this the MAF sensor or what?
Feb 6, 2019 | 12:03 PM
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,628
Likes: 4,072
From: Cape Coral, Florida
Sounds likes maybe a dirty throttle body...you can look at that first....might as well give the MAF sensor a cleaning while your there !!
Feb 7, 2019 | 02:42 PM
Intermediate
Joined: Apr 2018
Posts: 25
Likes: 1
My 05 GTO with the LS2 did the same thing, my buddy had an extra throttle body in his garage and we swapped it out and fixed the issue. We didn't try cleaning it but like C5 Diag said I would start there.
Feb 7, 2019 | 03:26 PM
Le Mans Master
Joined: Mar 2008
Posts: 9,779
Likes: 18
From: King City Ontario
I have the same problem on hot days mainly, when slowing down with foot off throttle.
It occasionally stalls while taking a corner which is scary because power steering stops.
What is there to clean in the throttle body?
Its an 08 Z06.
Feb 7, 2019 | 04:18 PM
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,628
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From: Cape Coral, Florida
Quote:
Originally Posted by
cdngolfer
I have the same problem on hot days mainly, when slowing down with foot off throttle.
It occasionally stalls while taking a corner which is scary because power steering stops.
What is there to clean in the throttle body?
Its an 08 Z06.
Great videos !!...just get some TB Cleaner...with the key on keep gas pedal down like in the video and clean away with an old toothbrush !!
Last edited by C5 Diag; Feb 7, 2019 at 04:29 PM .
Feb 7, 2019 | 04:23 PM
Le Mans Master
Joined: Mar 2008
Posts: 9,779
Likes: 18
From: King City Ontario
Feb 7, 2019 | 05:19 PM
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,628
Likes: 4,072
From: Cape Coral, Florida
Super !!...keep us advised of the outcome !!
Feb 9, 2019 | 08:32 AM
Le Mans Master
Joined: Mar 2008
Posts: 9,779
Likes: 18
From: King City Ontario
That might take until June when it gets warm enough in Toronto to see the difference......damn!
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