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+--- Thread: 94 tracker died while driving down the freeway (/thread-94-tracker-died-while-driving-down-the-freeway)
94 tracker died while driving down the freeway - Rockstar 78 - 12-14-2015
Driving down the freeway my 94 tracker died. Towed it home, checked the fuel pump relay and the fuse, both good. Didn't hear the fuel pump prime. Replaced the fuel pump, still won't start. Fuel pump primes when you turn the key now. Cranks just fine. Any ideas other than checking for spark? That's my next step for tomorrow.
RE: 94 tracker died while driving down the freeway - fixkick - 12-14-2015
94, well (the ecu can cut fuel 4 ways) so....
first was,,, insert the diagnostic jumper, in the DLC, under hood.
see code 12s flash, keyon. good
now with dead engine, we crank for 5 full seconds, release the key, got 41 or 42 code or TPS errors of any kind?
and second is checking for spark,.
but if got code 41 ,42, its just a waste of time checking spark because its failing, for those 2 codes.
here is the jumper
http://www.fixkick.com/CEL/DLC/DiagJump.html
4 pin or 6 pins? next to battery with rubber cap? can be either type.
is engine 8valve or 16valve, the latter shouts that on top of valve cover.
fuel is cut for the following reasons.
1: code 41, or 42
2:CMP dead.
3: Tachometer line dead for ANY REASONS what so ever, it goes to more than one place and can short out.
4: TPS throttle angle pin stuck over 4v, or TPS ground broken, same deal
if all this checks out
may be the cam belt slipped
so i check spark timing, next if way off the cam slipped for sure.
if the cam slips enough spark dies, a rotor lands ,between cap tower terminals and fails HARD.
see sneak a peak, the belt is 60k mile service point.
http://www.fixkick.com/t-belt/sneak-a-peek.html
the jumper test is easy
so is spark test
and spark timing if spark not dead on #1
RE: 94 tracker died while driving down the freeway - brautigan123 - 01-09-2016
I have a '95 Tracker 16Valve and two different times wires within the harness that runs along the passenger side of the engine, under the intake manifold, shorted to ground. One was the wire to the alternator and the other was for the temp. gauge. Had to run new wires routed differently because no easy way to get at the original harness. Heat and vibration cause the harness anchors to cut into the wires and short them to ground. When my alternator wire shorted it killed the engine and blew a fuse.
RE: 94 tracker died while driving down the freeway - fixkick - 01-09-2016
thanks.
and the injector bundle too... EFI wires must not have damage.
many of those harness had nice clamps and sleeves
then after engine work, those get damaged
to avoid that is to retract them fully, before engine pulls or manifold pullls
as seen here,
i cleaned it all up, then retaped all damaged harnesses, and then made sure when done there were no points to chafe.
using clamps and tie wraps and even heat shrink to protect ends.
some of these have 25 years running now.
and crazy high mileage, even 300k miles. or more.
also getting connectors is hard, (not sold) so get them off wrecked car and remove the whole harness is what I did for spares
good luck and cheers.
the op lost spark or fueling
the eCu is progammed (hard logic)
to cut fuel for 4 reasons. 3 spark and 1 seeing TPS STUCK WIDE OPEN THROTTLE. TPS ground wire cut, does just tha,.
but the ECU tells you this.. every time.
just ask it.
code 41, 42, or tps error.or dead tachometer line all do this.
best, was to check for spark first
cant burn fuel ,no spark.
the temp gauge is not connected to the ECU
but the ect IS ,
and if cut.
the ECU tells you it is.
and then goes rich as h3LL