My truck died as if not getting fuel but after a few tests it turns out its getting no spark to the plugs, or from the coil to the rotor. As well (not sure if relevent) when i took the cap off rotor it didnt spin when the engine turned over.???? and ideas or input
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Re: rotor not spinning
There are several things to consider 1 timing belt/chain broken 2 distributor shaft broken 3 camshaft broken
for timing chain/belt check remove the oil cap and if you can see the rocker arms rotate engine and see if the rockers are rocking(if you have an over head camshaft you will want to be looking at that)you may need to remove the valve cover to inspect this.
for distributor shaft....remove the distributor and inspect it
for cam.......if it's not an overhead one dissassembly of the engine may be required(you may be able to look down the distributor shaft hole(with distributor removed) and rotate the engine to see if it's turning
in my opinion the most likely of these is a timing belt/chain broken hope this helps!...........good luck!
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Re: rotor not spinning
Your timing belt has broken, u also have a balance shaft belt that should be replaced with the timing belt. Here are the part numbers of the belts from Gates web site: Timing belt #T090, Balance shaft belt #T089
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no spark from coil directly?
is the cam turning, is the dizzy rotor spinning. ????
check all fuses first. Ig-coil, FI and dome.
then using diagnostic jumper wire or fuse, (as approp)
crank engine look for code 41 o 42.!!!
USA cars , answers only
our cars are all EFI that year.
no engine swaps to Suzuki G16A/B sidekick or tracker engines.!
1: engine cranks
2: no spark
3: The ECu makes spark
the CMP sensor in the DIzzy , (never fails if rotor turns, does rotor turn, if not cam belt igored and now snapped.)
the cam turns. the CMP fires. the ECU takes this CMP signal
and fires the ignitor next to coil and the coil charges, and release and BAM spark.
that is it.
the ECU will tell you when the CMP dies or the Ignitor fails
why not ask it.
1: key on
2: diagnostic jumper in place (flashes 12s for ok)
3: crank engine,for 5sec, not 1 ,not 2.
3: release key not off.
4: see code 41, or 42, BINGO !@!!!!
If you have no spark at the plugs when it quits running, you need to test the remainder of ignition parts, such as the coil and ignition module. For that you will need a repair book for the procedures.
If it will turn over check to see if its fuel or fire. To check for fuel, spray quick start for a few seconds into intake. If it starts and stops. its fuel. Change fuel filter and check fuel pump. If it does not start its fire, Could be distributor cap, rotor, coil, spark plug wires or spark plugs. If it does not turn over it could be battery or starter. Check battrey connections, ground strap from motor to body and ground wire from battery to motor and body.
I would check to see if you are getting spark at the plugs, with a spark test. If no spark, you could have a bad cap, rotor, ignition control module or pick up coil. Can you hear the fuel pump "buzz" for a few seconds when you turn the key on? If not, you may have a bad fuel pump realy, fuse, or the pump itself.
I know in the mid 1970s Chevy had a modulator chip inside the distributor that would cause the same exact symptom they cost around $25 and can be found at your neighborhood autoparts store. A quick check for spark will tell you if this might be the problem
Here are a couple of things that could be causing your problem.
1. Bad ignition coil or ignition module
2. Clogged fuel filter
3. Clogged air filter
4. Clogged fuel injectors
5. Bad spark plugs, wires, distributor cap and /or rotor.
6. Broken timing chain/belt.
Here are a few things you can try to verify that you have a good spark.
1. Remove the distributor cap and crank the car. If the rotor turned you're ok. If it doesn't turn then that's you're problem and you will probably need to change a timing belt/chain.
2. Check the spark from the ignition coil by pulling the coil wire from the center of the distributor. Use an alligator clip to attach a short wire to the coil wire contact. Bare the other end of this short wire and set it up so it's sitting very close to the engine block. Turn off the lights and try to start the car. You should see a spark jump from this wire to the block. If you don't see a spark it's likely your ignition module or ignition coil is bad.
3. If you have a spark maybe it's not getting to the plugs. You may need to replace the distributor cap and rotor. You can test if the plugs are sparking by pulling one, re-attaching the spark plug wire and seeing if you get a spark when you try to start the engine in the dark. Please note, the metal threads of the spark plug need to be shorted to the engine block to complete the circuit during this test.