Need help with a 4.9
#1
#5
#7
if it won't even fire on starting fluid, and you have spark on ALL cylinders, then it's either a timing issue or a compression issue. Did you move the distributor when you replaced all the parts? Did you replace the wires in the correct firing order AND the correct orientation on the distributor cap (is the rotor still pointing to the #1 plug when you are at TDC on the compression stroke)?
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#8
if it won't even fire on starting fluid, and you have spark on ALL cylinders, then it's either a timing issue or a compression issue. Did you move the distributor when you replaced all the parts? Did you replace the wires in the correct firing order AND the correct orientation on the distributor cap (is the rotor still pointing to the #1 plug when you are at TDC on the compression stroke)?
#10
While I agree that he should look at spark and timing first, there are a number of mechanical failures that could result in a no-start situation with low or no compression in one or more cylinders.
#11
I just posted a thread titled, "4.9L i6 300 Hesitation/Stall/Rough Idle". Check that out. I agree with comments on the timing. There's a great youtube video for replacing a distributor - search "1987 Ford F150 I6 Damper, Distributor, Timing, and Start Part IV". Im currently experiencing similar problems so I hope this info will help you out!
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