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2001 Silverado won't start w/ security light on
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jsmartt82
New User
Oct 14, 2013, 8:27 PM
Post #1 of 2
(1897 views)
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2001 Silverado won't start w/ security light on
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2001 Chevy Silverado 1500 5.3L
One morning I went to start the truck and it wouldn't start! The engine turns over, but it will not start. The security light flashes intermittently between the battery light when the key is in the on position. Once I remove the key the security light stays on steady. I don't know what's wrong with this truck. It had zero symptoms and then just wouldn't start one day. Here's a list of things that I've already tried.
Replaced Fuel Pump (has plenty of psi at the rail)
Replaced Fuel Filter (yes the arrow's pointing the correct way)
Replaced the crank sensor
Replaced the battery (just for good measure)
Tried the relearn process both 10 min and 30 min
Tried bypassing the passlock with a 1k resistor and a 2.2k resistor and then tried the relearn process
Removed resistors and reconnecting all wiring using wire butts. ( I checked the ohms read out before I connected it back so I know the connection is good)
Also my key fob will not lock or unlock my truck and when I use the lock/unlock buttons at the door it will lock both doors, but will only unlock the passenger door. I have to unlock the driver side door manually.
I also tried the key fob relearn (turning key over three times with unlock button held etc....). That didn't help either.
I'm completely lost. I don't want to take this truck to the dealer. PLEASE HELP!!!!
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nickwarner
Veteran
/ Moderator
Oct 15, 2013, 2:21 AM
Post #2 of 2
(1879 views)
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Re: 2001 Silverado won't start w/ security light on
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You aren't going to have much choice. It takes a factory level scan tool and a good knowledge of that system to fix this now that you have already tried the obvious security bypasses. Why did you throw all these other parts at it? Thats a lot of money to just toss away, and would've more than paid for a tow and proper diagnosis at a dealer.
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