TB cleaning Big difference!
#1
02-27-2011 | 05:31 PM
Thread Starter
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Junior Member
Joined: Jul 2010
Posts: 17
TB cleaning Big difference!
07 H3 48k miles, RPM's were diving at stop lights, asked dealer and they said $150 they'ed clean the throttle body, well I declined and cleaned it, the mass air flow sensor and replaced filter myself and it did correct the issue and seems to have made a difference in initial throttle response. With only 48k miles I was surprised at how dirty the throttle body was. Guess the purpose of this post is if you haven't cleaned your throttle body, has others on here have said, you need to do it. Cheap and easy preventative maintenance that makes a difference.
#2
02-27-2011 | 10:44 PM
Senior Member
Joined: Sep 2008
Posts: 6,018
From: SE Michigan
I agree 100%. I did this on our H3T I5 with only 30K on it and it made a huge difference in idle and low end throttle response.
Just a note: Do NOT touch the actual MAF with your fingers and only use a MAF cleaner on it! I've had to replace one because I didn't follow this advice. Expensive lesson to learn the hard way.
Just a note: Do NOT touch the actual MAF with your fingers and only use a MAF cleaner on it! I've had to replace one because I didn't follow this advice. Expensive lesson to learn the hard way.
#3
02-27-2011 | 11:09 PM
Member
Joined: Feb 2011
Posts: 32
From: CA
can someone help me getting instructions on how to clean the throttle body, im sure mine is way dirty and im a DIY type of guy, and im dont feel like taking it to the GM shop and getting drained by there prices..... any help would be much appreciated 
#6
02-28-2011 | 12:40 PM
Member
Joined: Feb 2011
Posts: 32
From: Western Michigan
07 H3 48k miles, RPM's were diving at stop lights, asked dealer and they said $150 they'ed clean the throttle body, well I declined and cleaned it, the mass air flow sensor and replaced filter myself and it did correct the issue and seems to have made a difference in initial throttle response. With only 48k miles I was surprised at how dirty the throttle body was. Guess the purpose of this post is if you haven't cleaned your throttle body, has others on here have said, you need to do it. Cheap and easy preventative maintenance that makes a difference.
What about yours made you say it was dirty?
#8
03-01-2011 | 06:17 PM
Thread Starter
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Junior Member
Joined: Jul 2010
Posts: 17
It was pretty simple to clean, just need flat head screwdriver and I think 10mm socket, disconnected battery, removed hoses, then removed box just in front of throttle body, then disconnected hose on throttle body, removed four screws holding throttle body on, laid a towel underneath and went to spraying with cleaner, used rag and hand to remove thin film and some build up especially around plate. It was a little tedious to get to some spots, but definitely worth for a few dollars for a can a throttle body cleaner and another few dollars for a bottle of MAF cleaner. Waiting to see now if it makes in difference in MPG. Definitely stopped the idle dip at stopping and improved overall throttle response.
