245 hp 01 misfire cylinder new pump new injector good compression
I installed a new ip and have had white smoke and a misfire in #1 cylinder. Replaced injector to see if that was it. Still nothing, finally got around to compression which i did 1 and 2 to get a good and bad reading. Both read about 475 psi. No idea what to check next.
---AutoMerged DoublePost--- Forgot to mention its an 01 6spd 3500 |
I'm guessing your using a injector kill test to determine which cylinder. Typically if there's a misfire caused internal mechanical issues it will show in compression or leak down test but just for poops and giggles do you have any blow by? Did the misfire occur after the injection pump replacement? Or was it already occuring?
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It happened afterwards, but it was sitting a while before a new pump was put in. I tested the injectors to see if the one i bought was bad so i switched 1 and 3 and checked and #1 still misfires.
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Sounds like a faulty pump.
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Could it be timing at all or a way to check it or should i just pull the.pump and send in for warranty
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Originally Posted by davidthomas
(Post 1046211)
Could it be timing at all or a way to check it or should i just pull the.pump and send in for warranty
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I pulled the bolt i can see the key further back but its not actually in the gear. I dont know if that would be normal or if it needs to be through the gear.
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Originally Posted by davidthomas
(Post 1046364)
I pulled the bolt i can see the key further back but its not actually in the gear. I dont know if that would be normal or if it needs to be through the gear.
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I sent pump back to company they said they checked on a bench amd it was good sent back to me and still misfire. On #1 only.
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Are your valves stuck shut maybe a bent push rod ???
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