I have a 1990 k2500 with the 350. it will not crank. everything else is fine and drove to where its parked. when i go to start it, there is no noise, not even the solenoid. the only thing that happens is the temp gauge shoots up and the lights go dim.
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Re: 1990 k2500 no crank
Check transmission neutral switch is ok,
Check the charge condition of the battery, Check battery terminals are clean and firmly attached to the battery,
Check battery ground connection to the body is in good order,
Check 12v supply maxi fuse (or fusible link) connections are in good order,
Check operation of 'start' relay (if fitted).
If all above is ok, check the starter motor solenoid operation.
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Remove your battery, take it to O'Reilly's, AutoZone, etc.. have them check the CCA (Cold Cranking Amps)-load test.
.. this is what makes your car crank.>Amperage< ... 12+ volts might run the lights.. but just voltage WILL NOT crank your car.. the age of the battery doesn't matter either..
sounds like a broken timing belt,timing belts like to break during engine cranking and engine shut down. there are inspection holes in the timing cover,if you can't determine, remove top half of timing cover and check belt for slap,if there's slap,it's broke.
Sounds like the injectors may be bad or just really dirty. You say that the truck is only used as a plow truck, so I would assume that it sits alot. If you dont add any fuel stabilizer to the tank, the fuel will start to degrade and the will gum up your injectors. One thing you can do is to pull the air cleaner assembly off and look at the injectors while the truck is running. Look at the bottom of the injectors while it is running. The injectors shouldbe spraying fuel with a fan spray of fine mist. If you see any drips of fuel in the this fine mist, that injector is at least dirty or on its way out. I would recommend that you change your fuel filter and then get some fresh fuel and the purchase some Seafoam fuel injector cleaner from your local parts store. Dont mess around with anything else. GET SEAFOAM. If it is in a plastic bottle it is not strong enough to do anything. Seafoam is in a metal can. Dump the seafoam in and run the truck as much as you can. This will help clean out the injectors.