fuel injector cleaning
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Almost a Member!
Joined: Apr 2004
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From: Naperville, IL
89 420 SEL and 97 E320
fuel injector cleaning
My 89 420SEL is idling VERY roughly, and a local mechanic said my injectors need to be cleaned.
Can anyone tell me if this is a job I can tackle at home?
Can anyone tell me if this is a job I can tackle at home?
Thread Starter
Almost a Member!
Joined: Apr 2004
Posts: 57
Likes: 0
From: Naperville, IL
89 420 SEL and 97 E320
No, I haven't eliminated much of anything else. I replaced the heads about 1.5 years ago after a timing chain failure... so I'm thinking that the seals are probably okay.
Stupid question but how do I eliminate things like the idle control valve or the computer... that has to be done in a shop, right?
Stupid question but how do I eliminate things like the idle control valve or the computer... that has to be done in a shop, right?
Almost a Member!
Joined: Jan 2004
Posts: 64
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From: Florida
85 500 SEL
Not necessarily, the OVP has a fuse that can be checked; if the OVP is bad you may have the ABS warning light on. A bad ECU is possible but not likely – you can try soaking the ICV in carb cleaner for 24 to 48 hours to see if that helps – I still think it’s seals or vacuum leak.
