94 Toyota 4x4 reg cab, m/t, 4cyl--wouldn't run, now won't start

Asked by Jan 04, 2016 at 09:11 PM about the 1994 Toyota Pickup 2 Dr DX 4WD Standard Cab SB

Question type: Maintenance & Repair

My son's truck, he bought it at a fair price while
home on leave, knowing it needed cracked
cylinder head replaced. We installed new cylinder
head, timing kit, water pump, thermostat, fuel filter,
etc. It already had a new air flow sensor. Timing is
now correct. (Ran it for a very short while, but
exhaust manifold turned cherry red after bout 10
min of driving, timing was off). Alternator & starter
are good, new battery. Has good fuel pressure and
spark. 2 days ago it started and ran ok, just
seemed to need some good injection cleaner run
through it (it had been sitting for about a year).
Today it will NOT start. Friend has a neighbor with
a 93 toyota pickup that apparently is doing the
same thing. I was thinking ignition module, cam
sensor or crank sensor possibly, but idk. Electrical
issues are not my thing! Any ideas? My son is in
the Air Force, can't afford a big repair bill, he now
has too much invested, really needs his truck.
Suggestions are appreciated!

1 Answer

72,335

Start at the basics. Check for spark, fuel, and compression. Spray some starting fluid down the throttle body. It should run a few seconds on the starting fluid. If so, it's a fuel problem. If not it's either an ignition (no spark) problem, or no compression (valve timing is off). I'm assuming that it has a distributor. So check the ignition timing as well with a timing light. You can do this while cranking as long as you have spark. Perhaps the distributor moved. I've had that happen to me before! HTH. -Jim

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