v10 dies when first started
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v10 dies when first started
I have an 02 f350 V10, the past few months I have had to replace several parts including: o2 sensors, replaced exhaust and eliminated catalytic convertor, fuel pump, fuel injectors, all 10 ignition coils with new boots, IAC, MAF, PCV valve, and cam sensor. Now when I first start the truck in the morning it will stall and die, if I turn the key off and restart the engine it will run fine. I have swapped the relay for the PCM for another relay and it still does this. It has never thrown any codes even when it was running on 6 cylinders. I do not know where to go now other than new PCM, which I hope not to take that route. Thank you for the help in advance.
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I would hook fuel pressure gauge up first start truck and then shut it down then watch fuel pressure to see if it drops u could have fuel leaking back to tank or a injector stuck open I will have to look up the spec but it should hold pressure for a while. Next time u cold start truck try cycling key a few times to build fuel pressure then see if it stalls
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Joined: Sep 2000
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From: Stephensville WI
Hello travishy and welcome to FTE.
A couple of things jump out at me. First, I do not see that you replaced the fuel filter. As Big Bad Bronco suggests, you need to look at a fuel pressure gauge while starting.
The second possibility is perhaps this is related to cold starts, in as much as maybe a malfunctioning temp sensor is not commanding fuel/air mixture to go rich at start? I may not have the sensor name correct, but Intake Air Temp (IAT?) sensor sounds right.
A couple of things jump out at me. First, I do not see that you replaced the fuel filter. As Big Bad Bronco suggests, you need to look at a fuel pressure gauge while starting.
The second possibility is perhaps this is related to cold starts, in as much as maybe a malfunctioning temp sensor is not commanding fuel/air mixture to go rich at start? I may not have the sensor name correct, but Intake Air Temp (IAT?) sensor sounds right.
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Yes I did. It was the relay. I checked all the relays with my volt meter and out the bad one in the non uses slot and have not had a problem since. Thanks for the help hope this will help someone else with the similar issue.
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From: Isanti, MN
Which relay? For this to be useful we need to know which one it is.
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