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09-02-2015, 10:51 PM | #1 |
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Join Date: Aug 2008
Location: mohave valley,arizona
Posts: 1,088
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2001 5.3 in 99.starter cranks always
swapped in a 2001 5.3 and 4l60 into a 99 silverdo 1500 2wd.
wiring hrness from the 2001 with the engine. compuer(ecu/brain whatever) is from an 03/04 suburban 2wd 5.3 it is nearly ready to try and fire, except as soon as i connect battery, the started begins to crank over, even with key off or out. the starter wires were big and small(size specific) so i couldnt have the wrong one on the wrong post i am attempting to find wiring diagrams( i already have the c1 and c2 pinout diagrams) any idea whats going on?
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1969 Shortbed in progress 1982 short step, few suspension and motor upgrades.getting a 468 1978 Shortbed fleet side bonanza fully loaded 1978 k20 Silverado loaded.currently engine-less 1989 k10 suburban 9" lift 65 nova And more |
09-03-2015, 02:14 PM | #2 |
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Join Date: Sep 2014
Location: Houston, Texas
Posts: 27
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Re: 2001 5.3 in 99.starter cranks always
The little wire on the starter is the start wire it should only have power while the key is in the crank position. That wire is either shorted to battery power or the starter solenoid is shorted. I would check to make sure when you tightened the wires on the starter that they are not touching each other on the solenoid.
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