The truck seem to miss fire when you give it gas iddles good has new plugs and wires with new dist cap. have been told the if the cap are not factory equipment will have problems.
Re: The truck seem to miss fire when you give it gas...
I don't think you understand who makes the dist caps.
The same one you got, could be made for ,and put into a mfg branded box.
The part just needs to meet mfg specs,so you weren't told fact based info.
Plugs,wires and cap,are more preventative maintainance items, than a fix for your issues.
So you really have not diagnosed the problem yet,just changed a few things, without knowing how to test your vehicle to find the problem
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F700 truck (F) 5.9, 6.6 and 7.0L engine 370 = 6L sure
spark, fire is fuel burning, and is 2nd after spark (order)
buy the service manual to learn all wiring here easy.
so is an old distributor, engine 92' push rod heads.
and stand alone spark coil and this coil spark tested good
well if yes spark is good NOW! that is what that first test proves
and proves safeties are not cutting spark but may cut fuel.
spark not making plugs means the distributor itself is bad.!
or all spark HV wires bad and all plugs 100k old and dead fouled,
EOL that. or
a bad cap ,bad rotor,(or missing rotor or distrib. is not timed ! anywhere near accurate, dizzy mount is loose?
we test all spark plugs for spark not just 1 (all). and the coil too.
if spark is good test fuel now works, (a spray can called instant start)
into air cleaner pipe tunnel.)
watch scotty K, do that easy..
engine good
spark good
spray fuel works for 3 second run, even do it 3 or more times
so is fuel dead (injectors? (what ever is there IDK))
to hear engines sounds nice not valves bending (LoL)
On my 2002 safari I had a inter miss fire. After double checking all electrical. I had a bad injector of all things that was bad. My not be ur case but I thought I would mention it
OVP relay, coil and wires usually are the culprit. If not then it gets spendy. EZL is alot and may be an issue. EHA / EGR tube gets clogged also which comes off the exhaust.
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