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Cleaning EGR?


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I have been reading posts about cleaning the EGR tubes and what not. Is this really needed? I noticed that the EGR seems alot different compared to any other car I have seen. This must have something to do with the smog pump. What will I gain if I clean the EGR vavle and tubes? I have an 89 SeVille and I don't think this has ever been does. Really I just want to know if I should do this and what is the point? Thanks!

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you obviously do not need to clean EGR related parts if DIC does not show any EGR related codes and Service Engine Soon light does not come up.

I hav ecurrent code and light but since they rather affect a little bit the emission than the performanace I just ignore them.

The saddest thing in life is wasted talent

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The '89 Seville had the 4.5 with throttle body injection. I don't think the EGR tubes on the TBI engines were suseptable to clogging up as on the multiport injected engines from 1990-1995.

Kevin
'93 Fleetwood Brougham
'05 Deville
'04 Deville
2013 Silverado Z71

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Actaully.....the EGR (or lack there-of...) WILL affect the driveability and fuel economy of your car. With the EGR flow blocked by the plugged EGR tubes the engine will run lean and have a strong tendency to detonate (ping, spark knock) so it is advisable to clean the EGR tubes out.....

Guru, I agree with you (as always :D ) but throatle and tubes are fine I have checked them out with a flushlight. Nevertheless still get the current code and SES light. I monitor fuel economy religiously since I consider it as one of the best indicators of car's condition. I have decided to do nothing about the code following the DTUTTY (Do Not Trouble Trouble Until Trouble Troubles You!) :D

The saddest thing in life is wasted talent

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