2009 3 valve
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2009 3 valve
So I can’t get the truck to start. I can hear the fuel pump energize when I turn the key to on. I checked fuse 27 and the relay. Also replaced the fuel drive module on rear frame rail. Sprayed starter fluid in to try to differentiate between fuel/ignition. Still cranks but no start. There is fuel pressure at the rail. Ideas?
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So I can’t get the truck to start. I can hear the fuel pump energize when I turn the key to on. I checked fuse 27 and the relay. Also replaced the fuel drive module on rear frame rail. Sprayed starter fluid in to try to differentiate between fuel/ignition. Still cranks but no start. There is fuel pressure at the rail. Ideas?
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I have been messing with this no start condition for a bit - there are no codes except for an evaporative emission code. Checked all fuses. Replaced fuel pump module. A guy at the parts store mentioned the crankshaft and camshaft position sensors, but wouldn’t that throw a code if they were bad? Truck was running , then stalled and wouldn’t start since. Then sat for a year and a half til now.
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An internal combustion engine bees three things to run
fuel
spark
compression
if you are positive you have fuel and spark, it’s time to do a compression check.
could the engine have jumped time?
fuel
spark
compression
if you are positive you have fuel and spark, it’s time to do a compression check.
could the engine have jumped time?
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So I said I have fuel at the rail. After researching , I am going to try to check the fuel pressure to make sure it is within specs. I have read 35 psi +\- 5 psi. Is that the correct pressure for “cranking” since it won’t start? And I can check it right at the valve on the driver side rail near the front correct?
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I just looked up in the Chilton's manual, and the factory spec is 51 to 60 psi with the key on/engine off. No published spec for cranking, but it sounds like low fuel pressure may be your problem.
Check again by cycling the key and watching the pressure, if you get less than 50 psi you have a problem.
Check again by cycling the key and watching the pressure, if you get less than 50 psi you have a problem.
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So with key on engine off, the pressure rises to about 40 psi then slowly lowers down to 5 or so. Is the fuel pressure regulator at the fuel pump itself? I am thinking I will do the pump, regulator and filter.
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