99gmck1500
Newbie
Alrighty I've been fighting an issue with my 99 k1500 gmc suburban with the anti theft system. Long story on how I got this suburban was back in 2020 I bought it for 500 bucks. Had to put in injectors an a starter an still had an issue with it starting didn't realize the theft system was tripped on. Watched a video on YouTube an got it to work. Fast foward to 2022 I've been having intermittent issues with it. Security light would stay on an won't start then like 6 mins later it would turn off an bam starts up an that for a week. Well now it's gotten weird it would stay on an start up then shuts off. At times it would take 1hr or so to get the suburban running. Now it won't even start at all now like starts up then stalls. I've done the reset procedure 6 times. Ive disconnected the battery for an hr. Now herese a weird part. If i disconnect the anti theft module the security light would go off an still wouldnt start .I've had it towed to where I work at due for the fact I'm a mechanic an have all the scan tool. But won't be there till Tuesday after labor day. Any suggestions on what is going on with the whole truck. I really don't want to sell it but I've been tempting to sell it when I get it fixed. Any help be awesome. Thank you