87 no start
metalheads87
11-23-2010, 10:02 PM
i have a 1987 for f150 5L 4x4 4 speed.. motor wont start thought, coming off the highway off ramp dropped 4th to 3rd truck stalled.. thought it was a battery and altenator problem wasnt... sparks plugs work fuel pumps working got air and compression also. turns over wines down but dosent fire up. not the timing chain ripped it right down and back up but not the problem. :banghead: the bitch should start..any ideas fellas
FORDGUY09
11-23-2010, 11:50 PM
had similar problem few months back
Check the following:
fuel pressure ( you got 2 pumps and the high flow might not be putting enough out)
Timing it self
Cat converter
Check for spark by the gap size to see if it is getting enough spark ( oreilly's sells spark testing tools for about 10-15 bucks)
My truck stalled out not be hold sounded like it was timing issue but kept running till i completely lost my intank fuel pump and high pressure pump was only putting 25 psi out and replaced both pumps timing chain pulled cat out to find out it was also blown out.
Check the following:
fuel pressure ( you got 2 pumps and the high flow might not be putting enough out)
Timing it self
Cat converter
Check for spark by the gap size to see if it is getting enough spark ( oreilly's sells spark testing tools for about 10-15 bucks)
My truck stalled out not be hold sounded like it was timing issue but kept running till i completely lost my intank fuel pump and high pressure pump was only putting 25 psi out and replaced both pumps timing chain pulled cat out to find out it was also blown out.
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