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#1
12-06-2003, 07:53 AM
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EGR Valve carbon problems
My 94 S-10 Blazer keeps getting carbon chunks stuck in the EGR Valve making the pintle stick open. When this happens the ECM makes the truck try to shut down and I get this really rich egg smell from it. I take the EGR Valve off and Clean it out then put it back on and it is fine for a day or two sometimes a week or two and then all of the sudden it gets more in it. What can I do to cure the source of the carbon chunks so they quit getting lodged in the pintle of the valve. I have already replaced the valve 4 times at almost $300 each. I think the carbon is the cause of the failing valves. Any help would be appreciated..........Tim
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#2
12-07-2003, 08:14 AM
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Re: EGR Valve carbon problems
Check out www.tomco.com they have a screened gasket that will prevent the carbon chunks from entering the valve
__________________
Why do you never have enough time or money to do the job right the first time, but enough time and money to do it again? Got all the certifications 25 years ASE Certified Master Technician GM WCT Yea..I work at a DEALERSHIP....got a problem with that? Want to diagnose cars like the Pros? FOR SALE: OTC Perception 2 channel Labscope (badged as a Matco Reality) This is my personal labscope that I use to diagnose waveforms, like new, comes with leads and training video PM Me for details
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#3
12-07-2003, 09:25 AM
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Thanks for the info
Thanks for the info Merlin.......It was a big help. I didn't know they made such a gasket or I would have done that right away. I thought I was going to have to, somehow, correct the source of the problem. Thanks for the info.........Tim
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#4
12-07-2003, 01:49 PM
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Re: Thanks for the info
The true repair for this problem is to remove the lower intake and have it sandblased to remove the carbon build up...this is an expensive repair...the tomco gasket provides a inexpensive "fix" for the problem
__________________
Why do you never have enough time or money to do the job right the first time, but enough time and money to do it again? Got all the certifications 25 years ASE Certified Master Technician GM WCT Yea..I work at a DEALERSHIP....got a problem with that? Want to diagnose cars like the Pros? FOR SALE: OTC Perception 2 channel Labscope (badged as a Matco Reality) This is my personal labscope that I use to diagnose waveforms, like new, comes with leads and training video PM Me for details
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#5
12-15-2003, 10:36 AM
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Re: Thanks for the info
Quote:
I have had the erg valve cleaned and about 2 months later... it is loading up and starting very hard...black soot in tail pipe... How hard is it to remove the erg valve myself? And, did you follow up on the gasket for this problem and how do I obtain a gasket for the same...I am continuing to drive this truck daily but it needs a fix...please answer back...MJohn [email protected]
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