99 Starts then immediately dies

[Tate Clark]

Do you have what you did after the video

 

[Kevin 73]

I have an issue similar to this. 02 gmc 1500 2wd. It started and ran fine when I pulled it into the shop to change the turn signal lever. Now it fires and dies. Security light stays on. It does this every time the key is turned off and on. Unhooking the battery didnt change anything. Idea's anyone?

[evanbee97]

By chance any update? We are having this same

issue with our 99 Yukon and wondering if we should have the ECM reprogrammed. 

[Skully Coles]

 

My 03 5.3 Yukon starts sometimes then hard to start, and after you cycle the key twice it starts. What's the problem?

[sefiroxx]

Probably fuel pump/pressure. Before the 1st start, try turning key on for a few seconds, off, then start. If it improves, then fuel pump/filter.

[Ian Mills]

I had this issue on a 2000 Suburban I used to drive and it turned out to be the security sensor on the top of the ignition tumbler. If you take off the plastic steering column cover and look right on top of the ignition tumbler there will be a small plug with three wires. In my case that plug had become worn and intermittently had a poor connection which caused the security system to think the truck was being hotwired.

[gm4yrs]

On 9/23/2020 at 12:13 PM, Ian Mills said:

I had this issue on a 2000 Suburban I used to drive and it turned out to be the security sensor on the top of the ignition tumbler. If you take off the plastic steering column cover and look right on top of the ignition tumbler there will be a small plug with three wires. In my case that plug had become worn and intermittently had a poor connection which caused the security system to think the truck was being hotwired.

Same issue I had, on a 99 silverado. Took each wire, out of connector, and slightly pinch metal, closer. Problem solved.