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Re: 4LO And Check Engine Warning Light On
Posted to Technical Discussion Forum on 7/23/2017 8 Replies

Yes, but in this case there is no compression loss, so I don't think there is any compression leak to exhaust, which will require working on the valve seat as stated by the TSB. The vehicles drives normal, its just that the owner does not like seeing the check... Login to read more.

8 Replies Received (View Replies)