245 hp 01 misfire cylinder new pump new injector good compression
#41
Just want to make sure you did check the clocking pin on the vp shaft to make sure 100% that it is lined up with the gear ...there is only so many options that could cause this problem if it aint your powertrain ...can you get your hands on another pump to see what happens even a used one maybe just for testing ??? You seem to have tested everything that doesnt require lots of $$$ to test with the exception of testing the vp with your OWN eyes they may have sent you a bad pump and told you it was good cause they already made there money didnt want to make it easy on you ...it happens just my opinion...
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And what about too much fuel in chamber, i assume that would be the ip problem. But how and is there anything else to check for it.
Last edited by davidthomas; 03-16-2014 at 05:47 AM. Reason: Automerged Doublepost
#42
They said $145 for a swap on pumps. I have checked the gear multiple times and used a fiber optic when aligning for install. I have no clue now so just going to wait and see what the diagnostics book says.
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And what about too much fuel in chamber, i assume that would be the ip problem. But how and is there anything else to check for it.
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And what about too much fuel in chamber, i assume that would be the ip problem. But how and is there anything else to check for it.
Unless there's something that's not documented here I'm keeping my guess on the pump. How'd the truck run when it was parked? Didn't try and start it at all while parked? Are you positive it's cylinder 1? What happens when you perform the kill test? Is there a slight change or no change at all in sound and rpm? What rpm are you doing the kill test at? Regardless if it were in my shop, I'd be throwing another pump on it just for confirmation - cheapest and easiest solution and the only way you'll diagnose a pump issue at home.
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Last edited by mysterync; 03-16-2014 at 07:06 AM.
#43
Ok the return line is a possibility. I had to run new 3/8 hoses to the pump and back since the old fass pump was bad and the hoses sat for so long the cracked. I just put the return back on one of the fittings on top of tank. Will check. And 100% sure it's #1. I started cold and used laser thermometer and exhaust manifold was 80 degrees on each cylinder except #1 which was 32. And injector kill test it doesnt change the idle unlike cracking the other lines open where it will. I don't have another 2nd gen to swap ip and test so it would be 145 or to talk the company in to it. I will check the return tommorow night and disconnect and flow into a gas can and see if that helps.
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Also it wouldn't start when parked. The ip went out due to bad fuel pressure ruining the diaphragm.
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Also it wouldn't start when parked. The ip went out due to bad fuel pressure ruining the diaphragm.
Last edited by davidthomas; 03-16-2014 at 10:40 PM. Reason: Automerged Doublepost
#44
Ok the return line is a possibility. I had to run new 3/8 hoses to the pump and back since the old fass pump was bad and the hoses sat for so long the cracked. I just put the return back on one of the fittings on top of tank. Will check. And 100% sure it's #1. I started cold and used laser thermometer and exhaust manifold was 80 degrees on each cylinder except #1 which was 32. And injector kill test it doesnt change the idle unlike cracking the other lines open where it will. I don't have another 2nd gen to swap ip and test so it would be 145 or to talk the company in to it. I will check the return tommorow night and disconnect and flow into a gas can and see if that helps.
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Also it wouldn't start when parked. The ip went out due to bad fuel pressure ruining the diaphragm.
---AutoMerged DoublePost---
Also it wouldn't start when parked. The ip went out due to bad fuel pressure ruining the diaphragm.
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#45
#46
Haven't gotten to the return just to check it. Got a check so I will probably get the pump, but if the company said they tested it good then is there something that test can't figure out? And earlier on when you said to unplug the ip and try to start it, what is that testing for?
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#50