crank
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Trouble shooting ECM & Security Lock
Hey there Y'all, I'll put the full story below, but I was wanting to know if there was a way to trouble shoot a ECM and the security lock on a 2003 Chevy Tahoe. I have a OBD scanner that can't connect to the Tahoe, but will to other vehicles. The security lock is constantly on when I try to...- OldCrunchyTaco
- Thread
- 2003 chevy crank ecm ignition security tahoe troubleshoot
- Replies: 2
- Forum: Audio & Electronics
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K
Dont crank when hot.
Hi! After ride, when engine is hot, after 10-30 minuts i'm cant start the engine. Diagnose - dont have signal from PCM to relay. (Out 39 in C1 blue). If i ride with open hood or stay with open hood 30-40 minuts - starts okay. I'll check all wiring, ignition switch is okay. Two fuse block are...- Kun333
- Thread
- crank hot wiring
- Replies: 23
- Forum: Engine & Drivetrain
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2
2000 Chevy Tahoe 5.3 V8. new alternator, new battery still won't start. Help is appreciated.
Ok, so this stated last Friday night when I started the tahoe. I was still in my drive way when it sputtered and died. Had it on for about 5 min. I started by putting a code reader; 4 codes popped up: 1) U1026 - Loss of class 2 communication with ATC 2) P1637 - Generator L - Terminal...- 2000Tahoe53V8
- Thread
- crank
- Replies: 5
- Forum: Engine & Drivetrain
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2002 5.3 Crank appears to wobble at idle
Greetings everyone, and happy Easter if you observe it! Just picked up another Yukon. Also a 2002 like my first. After taking off the splash shield to change the oil, starting it up and checking to ensure no leak, I noticed the crank pulley appears to “wobble”. I can’t tell if it’s an optical...- OKYukon02
- Thread
- 5.3 crank crank pulley wobble pulley
- Replies: 50
- Forum: Engine & Drivetrain
