rough cold start issue

swinky · Jan 2, 2014

97BambiBasherPSD said:
It runs perfectly smooth. Never gives me an issue. Just starts hard these past few times. It's a little shaky but then again at those temps what isn't

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Sounds like a glow plug issue. If it was on the oil side of things it would run rough for a while. I'd still check the ficm though.

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97BambiBasherPSD · Jan 2, 2014

I'll double check it man. How can you check the GPs on these?

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swinky · Jan 2, 2014

97BambiBasherPSD said:
I'll double check it man. How can you check the GPs on these?

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Id check for codes first. But short of bringing it to somebody with the right testing equipment I'm not sure.

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97BambiBasherPSD · Jan 2, 2014

Damn I was hoping you could do it like a 7.3

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AirFishAutomotive · Jan 2, 2014

Rev x is a band aid by half ass at best. Tried it in about 5 trucks and worked for about 100 miles on one. Glow plugs are not that expensive to replace so if you did them it would rule that out. As far as oil goes everyone swears by this or that but we run rotella 15-40 in everything from 7.3-6.4 with no issues. If it has an injector issue it has an injector issue. There is no real band aid for it but to just do injectors. If you do not have proper tools to scan etc I would stArt with glowplugs since that is most cost effective

97BambiBasherPSD · Jan 2, 2014

If it is an injector issue then it will be fixed properly but right now between needing tires and a turbo I'm kinda strapped for cash. So I am hoping it's something simple

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swinky · Jan 2, 2014

97BambiBasherPSD said:
Damn I was hoping you could do it like a 7.3

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How do you do a 7.3? Might be the same and im unaware.

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97BambiBasherPSD · Jan 2, 2014

Where the uvch is there are two connectors. You use a voltmeter and the outer two wires are for the gps and see what the resistance is for each

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swinky · Jan 2, 2014

It almost sounds like fuel is bleeding off. Next time it's dead cold turn the key on and let the fuel pump run, should turn off after 30 seconds then turn key off and back on to let the pump run again then start it. I doubt it's your issue but worth a shot.

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97BambiBasherPSD · Jan 2, 2014

Where will you hear it at?

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swinky · Jan 2, 2014

97BambiBasherPSD said:
Where will you hear it at?

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Fuel pump is right under the driver mounted on the inside of the frame rail.

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97BambiBasherPSD · Jan 3, 2014

I did the blue spring mod about a month and a half ago

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97BambiBasherPSD · Jan 5, 2014

When my truck runs the ficm is at 48-49v but when it first starts up it will drop down to 45v after 20 seconds. I can't see what it's doin while cranking.

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