351W no start
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Mountain Pass
Joined: May 2011
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351W no start
95 F150 5.8L won't start. Long story short, I removed the engine and it got put back in. It has spark and fuel comes out of the valve on the fuel rail. It will start on carb cleaner and will keep running if continuously sprayed. Only difference is I took EGR off since I got a set of shorty headers. Vacuum lines are all good from what I can tell. Did the self test and got codes 27 and 63 multiple times. Any suggestions?
Fleet Owner
Joined: Oct 2005
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From: Kentucky
A 1995 model year F-150 should have three digit codes, not two. How did you pull the codes?
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Mountain Pass
Joined: May 2011
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I did the self test by putting a jumper between the terminals. The codes are 636 and 327 then.
Fleet Owner
Joined: Oct 2005
Posts: 20,784
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From: Kentucky
Therein lies the problem. Your truck displays three digit codes, you counted the flashes using the assumption and expectation of seeing two digit codes. Re-run the code check, but keep in mind your truck is flashing out three digit codes.
This is a very common mistake.
This is a very common mistake.
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Mountain Pass
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Fleet Owner
Joined: Oct 2005
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From: Kentucky
Code 327: EVP circuit below minimum voltage of 0.2 volts. With no EGR/EVP sensor I would expect this code.
Code 636: TOT sensor voltage out of self test range. Most likely caused by not warming up the engine/trans. before running the KOE tests and Stored Code display.
Neither of these codes will prevent the engine from running. You need to validate the fuel pressure with a gauge.
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Mountain Pass
Joined: May 2011
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So the fuel pressure gets to about 44 turning the key. But the stream coming out is very little. I'm assuming since these are EFI and a small electric carb pump puts out 50 GPH that the little stream is no where correct.
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Mountain Pass
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I blew compressed air through the fuel line and then checked it again, plenty of fuel at the rail now, but still doesn't run unless I spray carb cleaner in, then it runs good. Injectors firing?
Cargo Master
Joined: Jan 2004
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From: South Dakota
So does the engine stay running after you spray the carb cleaner in or does it just run until the carb cleaner is burned?