I used my 97 blazer to jump a mans 80's truck. i was not aware that newer vehicles weren't supposed to jump older ones. well, it almost immedately started having an intermittent starting problem. i put the key in turn it and then i have to wait forever for it to recognize the key is engaged. not sure if it may be the ECM or the ignition switch. i am hoping this has happened to at least one more person on this forum.

 

if you hook the cables up properly a new ride can still boost an old ride.

 

I doubt the problem was caused by jump-starting an older vehicle. Sounds like your ignition switch has started to fail on you...

When you say that you have to wait, are you holding the key in the START position and it takes a long time (how long) for the starter to engage?

 

I engage the key and it cranks but doesn't fire. If I wait 15+minutes ill see the gashes on the dash read properly then I can start it just fine. It also dies due tobthe same problem. Right now its intermittent. I'm thinking it may be the computer or ignition switch but maybe even the fuel pump relay

 

yes its your ignition switch cause i had the same problem with my dads pickup you have to wait 15 secs for the dash to turn on then the truck will start . if your dash aint on its not going to start. your ignition switch is starting to fail on you

 

I have the same issue, I have to have key in "on" position for 10 to 15 seconds before starting.

 

Having to wait 10+ minutes is a tell tale of a passlock issue. Could be that it just needs to be reprogrammed or it could be your ignition switch on the way out.

Having to wait 10-15 seconds could possibly be a problem with the fuel system. I'd start with a fuel pressure test and see if you have some leak down which would require time for the pump to prime the system before starting.

 

yeah the previous owner told me that needed be done to pump the fuel first before starting

 

brently04, please start a new thread on your problem as it sounds quite different from the original topic of this thread. Thanks!

 

sorry to bring back an old post im havin same issue on my 97 s10 did you guys replace the ignition switch as in just the switch the key goes in, or do you have to get the whole wiriing ingnition thing too