no start

merc04 · #1 (**permalink**) 10-29-2012, 01:28 PM

I have a 03 that has a new motor. The truck will not start, shop said that there was a bad fitting under one of the valve cover. Will this cause it not to start. Thanks

dannyboy950 · #2 (**permalink**) 10-29-2012, 01:56 PM

If they are talking about the connections for the High Pressure oil system then yes that can keep the injectors form working. The PCM has to see a ICP reading of 500 psi min. for it to tell the FICM to fire the injectors.

**southend** · #3 (**permalink**) 10-29-2012, 04:49 PM

I would suspect the orings in the hose to be bad, not necessarily the fitting. With that said, I don't know if the orings are available, or the fittings and hose come as a set. There are two fittings for each hose under the valve covers. These are on the 03 and early 04 MY, and they are a version of the famed stc fitting. "stc" printed right on the side. "snap - to - connect". They work like quick connect fittings you see on air hoses. The thing is, they see 500-3000 psi.

Sent from my phone that somebody didn't help me get.

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