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International Automotive Technicians Network
Re: 2004 Isuzu NPR 6.0 Gas DTC U0107
Posted to Technical Discussion Forum on 1/25/2017 3 Replies

Dave,

I found a voltage drop between the ignition switch and fuse number 3, the ignition relay was bad causing that drop. R&R relay fixed the problem. On your recommendation I did R&R the oil pressure switch. Even after replacing the switch the oil pressure ... Login to read more.

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