5.3 will not run!
#1
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5.3 will not run!
Here's the deal I wired up my motor and tried foreign it up but nothing happens. It cranks over it has fuel and fire. The PCM gas the vats deleted and works on my buddy's car. The engine cranks and acts like it wants to run but nothing. I need help because I am at a loss right now. Has anyone had this problem?
#2
Here's the deal I wired up my motor and tried foreign it up but nothing happens. It cranks over it has fuel and fire. The PCM gas the vats deleted and works on my buddy's car. The engine cranks and acts like it wants to run but nothing. I need help because I am at a loss right now. Has anyone had this problem?
Sam
#4
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It was Picking up a mil code and a code for the alternator. I did try some starter fluid( I didn't want to) and nothing. It just turns over and sputters. I will try disconnecting the tps and see why happens. Could it have anything to do with the timing?
#7
We had a 5.3 that had sat a couple years and the injectors were stuck - Soaked them a couple hours and it fired right up. I tested them with a 9V battery - They click when functioning correctly.
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#8
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Double check that your 'KEY ON' power wires do not lose power when you have the key in the CRANK position.
When you say you have 'FIRE' how did you verify this?
Jon
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When you say you have 'FIRE' how did you verify this?
Jon
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#9
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i checked the power on wires with a volt meter and everything was reading good. i also checked all plug wires and plugs. i am going to try all of the ideas. i keep my car on base and they are only open on the weekends.
#12
I had a similar problem with my 5.3 lmg turned out my fuel pump had come disconnected. i also had the ignition problem mentioned above from my ignition switch being wired incorrectly and the computer losing power.
hope you find the problem
hope you find the problem
#13
Not sure how you check the trigger signals to the coils with a voltmeter, but you actually disconnected a plug wire, stuck a nail or something down in there and held it next to the block and watched spark jump the gap?