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Any way we can talk? Phone. If so how do I post my number without everyone seeing it?

They work on an lb7 without having to pull the valve covers? My mechanic has done my work, not me.

My mechanic pulled valve covers, checked injectors, in spec really good. CP3 returned too much. Replaced with Thoroughbred Reman. Replaced fuel pressure relief valve with new Bosch. Still desired 5000, actual at crank6 500 or 600. Still crank no start. Now what should I do? Can injectors...

sounds like you know what you're talking about, yes we know about the fuel pressure needs to be about 1500 to fire and desired is about 5000. he pulled the valve covers, checked all the injectors individually and took into consideration each Bank total they were in spec. the CP3 was checked...

So are you saying it couldnt be a crankshaft or cam sensor or wiring/electrical? As a reason why actual is not desired? If so,

I read the article seems like a good article but it's kind of over my head. Question since we did the return rate test on the injectors and the CP3 the return rate test trumps the balance rate reading correct? I don't know the return rates but they were well within specs on the injectors but the...

Injector return rates not balance rates is what we checked although the balance rate look perfect on the scanner.

Thanks for your quick reply. We did check the injector balance rates by pulling off of valve covers my mechanic did it so I'm not sure exactly the procedure but each injector was checked. All the injectors showed in spec. CP3 did not so we replace the CP3 all the sensors all the regulator the...

Yes definitely. Do you have any experience with scanners? my mechanic tell me if desired is 5,000 on rail pressure at cranking that everything else is okay it should be a fuel problem however we've done everything related to fuel other than putting injectors in when the return rates show that...

I know the risk with the glow plugs and ether. That's why I'm not driving it. Any thoughts on what my problem might be? Did you see what all I've done to it?

Thanks MrMarty51

I'm the owner of an 03 2500 HD lb7 California emissions truck. Only 107,000 MI. Had a crank with very hard start when I bought it figured it was the hand pump housing. Deleted the hand pump housing put on a FASS. Seemed to help just a bit. Sent to my mechanic who did the fuel bypass test for the...

I'm the owner of an 03 2500 HD lb7 California emissions truck. Only 107,000 MI. Had a crank with very hard start when I bought it figured it was the hand pump housing. Deleted the hand pump housing put on a FASS. Seemed to help just a bit. Sent to my mechanic who did the fuel bypass test...