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Old July 9th, 2010, 11:39 PM   #1
acemann28
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Default cranks but no start

i just put a diffrent motor in my truck it cranks over but dose not start i am hearing a poping sound when i give it some gas . 1995 302 efi . i am about ready to junk the truck. thanks
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Old July 10th, 2010, 12:26 AM   #2
AceMon
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What did you try troubleshooting already? More info would be helpful. Double check your plug wiring and timing and then go from there.
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Old July 10th, 2010, 12:45 AM   #3
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A LOT more info would be a good start. For all we know you just dropped that 302 in an isuzu. Same yr engine? New computer or old? etc, etc, etc.
Are cylinders getting gas? (wet plugs) Pressure at the rail? Unless they changed there should be an orifice to check pressure on passenger side fuel rail. I run an injected 302 but without more info, they're all just guesses.
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Old July 10th, 2010, 01:06 AM   #4
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the popping would probably indicate a timing issue...reset distributor/recheck plug wire for correct firing order first


did you hear this engine run before putting it in the truck?
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Old July 10th, 2010, 11:22 AM   #5
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Quote:
Originally Posted by Yota Bill View Post
the popping would probably indicate a timing issue...reset distributor/recheck plug wire for correct firing order first


did you hear this engine run before putting it in the truck?
ditto,

also the firing order on HO 302s is different, maybe the plug wires need swapped around to the correct location
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Old July 10th, 2010, 12:33 PM   #6
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it was the timing , now i just have to get it running correct. thanks
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