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Fuel filter was clogged. Changed the plugs, and the coil, tested for spark - had none either at plugs or on top of distributer cap. Where do i go from here?
Was told there is no crank sensor on my truck. They said it was for a distributerless motor.Was told there is no crank sensor on my truck. They said it was for a distributerless motor.
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If a vehicle won't start, it's one of two things: no spark, or no fuel. If the vehicle is turning over, you can check for bad coils, distributor cap/points, or bad spark plugs/wires. On the other end, you can check for clogged fuel injectors/carburetor, clogged fuel filter, etc.
is it getting gass if u got spark to the plug's it should start.dump alittle gas down carb or throttle body making sure to replace air cleaner or snorkle and try and start.if starts could be fuel pump.
motors need 3 things to run properly. gas spark and compression. the starting point. also spark timing.
the motor you are dealing with is easy. i just rebult a 1978. anyways sounds like a timing problem . first i would check the distributer. if all is ok spay a squirt of starting fluid in the air filter, or even wd40.,,,,,,,see if it is gasoline problem. isolate where the problem is.
I believe that motor still uses a distributor cap, rotor, and seperate coil...it has to be no spark...inspect the cap and rotor for hairline cracks...remove the coil, (Connected to center wire on distributor cap) and have tested...Hope this helps.
Your testing so far seems to exonerate components #1 to #5, and #13. Since you've already replaced a number of parts to address the problem, I thought I should try to be comprehensive:
Priority Action Part Type Cause 1 Inspect Ignition Switch - Improperly Connected or Faulty Ignition Switch. 2 Inspect Battery - Battery Discharged or Faulty. 3 Inspect Battery Cable - Coroded, Broken, Shorted or Poorly Connected Battery Cable. 4 Inspect Starter Solenoid - Starter Solenoid Faulty. 5 Inspect Starter Motor - Starter Motor Faulty. 6 Inspect Wireset - Worn or Damaged Spark Plug Wires. 7 Inspect Ignition Coil - Faulty Ignition Coil. 8 Inspect Distributor Cap - Loose, Cracked or Worn Distributor Cap. 9 Inspect Spark Plug - Incorrectly Gapped or Fouled Spark Plug(s). 10 Inspect Distributor Cap and Rotor Kit - Loose, Cracked or Worn Distributor Cap, or burned rotor contacts. 11 Inspect Fuel Tank - Fuel Tank Empty. 12 Inspect Carburetor - Worn, Faulty or Damaged Carburetor. 13 Inspect Fuel Pump - Faulty Fuel Pump. 14 Inspect Fuel Pump Strainer - Fuel Pump Strainer Clogged. 15 Inspect Fuel Filter - Fuel Filter Clogged. 16 Inspect Air Filter - Air Filter Clogged. 17 Inspect Fuel Injectors - Fuel Injectors Clogged/Inoperative 18 Inspect/Test PCM - Powertrain Control Module (Computer) defective - sending incorrect ignition/timing signals to fuel injectors 19 Inspect Fuel Rail - Fuel Rail leaking/broken causing inadequate/low fuel pressure.
Use a HEI (High Energy Ignition) tester to see if you have spark to your sprak plugs - if not, suspect Ignition Coil, Distributor Cap, or Distributor Rotor.
You've already eliminated the spark plug & wireset, distributor cap & rotor. Sounds like your car needs a tune-up, specifically, the PCV (positive crankcase ventilation) valve, and/of the EGR (Exhaust Gas Recirculation) valve.
Components checked/replaced during a tune-up are: air filter motor oil motor oil filter breather filter fuel filter(s) fuel strainer PCV valve EGR valve spark plugs spark plug wires ECM or distributor cap & rotor cabin air filter transmission oil filter transmission oil engine coolant check all vacuum hoses and lines
Troubleshooting the no-start condition - from the 1990 Mitsu Mighty Max Repair Manual:
Priority Action Part Type -- Cause 1 Inspect Battery -- Battery Discharged or Faulty. 2 Inspect Battery Cable -- Corroded, Broken, Shorted or Poorly Connected Battery Cable. 3 Inspect Distributor Cap -- Distributor Cap Cracked or Burned. 3 Inspect Fuel Filter -- Clogged or Dirty Fuel Filter. 5 Inspect Ignition Coil -- Faulty Ignition Coil. 6 Inspect Wireset -- Worn, Damaged or Faulty Spark Plug Wire(s). 7 Inspect Spark Plug -- Incorrectly Gapped or Fouled Spark Plug(s). 8 Inspect Starter -- Starter Motor Faulty. 9 Inspect Fuel Pump -- Low Fuel Pressure. 10 Inspect Solenoid Switch -- Faulty Starter Solenoid Switch. 11 Inspect Fuel Pump Relay -- Faulty Fuel Pump Relay. 12 Inspect Fuel Injector Pressure Regulator -- Faulty Fuel Injector Pressure Regulator. 13 Inspect Ignition Switch -- Improperly Connected or Faulty Ignition Switch. 14 Inspect Starter Drive -- Faulty Starter Drive. 15 Inspect Fuel Injector -- Dirty or Worn Fuel Injectors. 16 Inspect Fuel Pump Strainer -- Clogged or Dirty Fuel Pump Strainerat. 17 Inspect Engine Control Computer -- Incorrect Operating Information Being Delivered and Sent From The EEC. 18 Inspect Fuel Tank -- Fuel Tank Empty. 19 Inspect Carburetor -- Carburetor Flooded or Faulty Choke. 20 Inspect Distributor -- Worn, Loose, or Incorrectly Installed Distributor.
1/ Have you fitted the spark plug leads in the proper firing order.
2/ Look inside the top of distributor Top (this is not the first time a new distributer cap has very small crack) or the rotor arm is fitting the cap properly. Hope this helps Best Wishes, Malcolm Campbell.
Was told there is no crank sensor on my truck. They said it was for a distributerless motor.
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