Jeep starts but shuts off.

Asked by Aug 11, 2008 at 09:34 PM about the 1994 Jeep Grand Cherokee

Question type: Maintenance & Repair

I replaced the batt in my 94 GC and now it won't stay running and the security light flashes how can I fix it?

26 Answers

unhook the neg side of battery for about 5 minutes so the computer can reset itself,if this dont do it ,look in fusebox and pull the ECM fuse for same amount of time,replace.this should fix your problem.

28 of 28 people found this helpful.

Computer must relearn. Have you scanned the computer for trouble codes?

10 of 10 people found this helpful.

I know on some Chryslers you just had to lock and unlock the door with the key to disable the security system. You should give that a try.

7 of 7 people found this helpful.

take ur ignition key to the passenger door turn to lock then unlock and that will reset ur computer

12 of 12 people found this helpful.

change the alternater

4 of 4 people found this helpful.

take your key and turn the drivers side door lock to the right , then left and then right again ...this will reset the security system.

11 of 11 people found this helpful.

2002 Grand Cherokee. Here's what happened to me: At every start, the engine would run for ~3 seconds, then die. Here's the solution: Use only a Jeep key made by Jeep. Analysis: I was using spare key (made at local auto parts store). It appears the official jeep key enables the security system when you insert it into the 'key hole'. Notes: If you see an intermittent problem like this, consider getting OEM (original equip. mfg., i.s, jeep) key.

19 of 19 people found this helpful.

BTW, intermitent problem indicates key is wearing out.

6 of 6 people found this helpful.

What worked for my 1994 Jeep GC was the key ticket(unlock, lock and unlock) in the rear door (tail gate) and then open the door.

6 of 6 people found this helpful.

R0620 worked for me. 1994 Jeep GC. Close all doors. Insert FACTORY key in the rear liftgate lock. Turn right (alarm sounds); turn left; turn right. Open driver's door and start engine. Voila!

6 of 6 people found this helpful.

I have done these things had it at dealer and got new key and it is still shutting off after 3 seconds

21 of 21 people found this helpful.

can the security system be shut down

41 of 41 people found this helpful.

The driver's door is the primary lock. For my Jeep the rear tailgate was the primary lock port. The security had been changed. Try each doors(unlock, lock and unlock) after reconnecting the battery. The security may believe it is a break-in.

3 of 3 people found this helpful.

Thank you guys for this; my primary lock was the passenger door.

2 of 2 people found this helpful.

97 jeep it starts but it shuts off after 3 seconds any answers place

57 of 57 people found this helpful.

Help my 2001 is doing the same thing after my radio was changed

9 of 9 people found this helpful.

For all that installed a radio with the antitheft system , today i installed a new head unit on my 2002 gc same thing happend to me first the cluster was dead with all the warning lights on then i thought it might have been the pcm so i tried resetting it by unhooking the negative hooked back the negative cable turned the jeep on it started then it shut of 3 seconds later so finally i said screw it and removed the radio turned the jeep back on and magically everthing worked again . Hope this helps folks ---- mike from riverside ca

2 of 2 people found this helpful.

My wifes 04 cherokee does this. I replaced the radio 2 days after I bought the car. The thing is, if I turn the key to the on position and wait 5 seconds for the lights in the dash to go off the car starts fine. A valet couldnt get the car to go because he was going too fast. I guess my only fix is to put the original radio back in it. Nah, we will take my ram if we go somewhere that we have to use valet. If any of you dont want to put the original radio back in it, just turn the key to the on position and wait for the guages to go up and the dash lights turn off, it will start and run every time.

2 of 2 people found this helpful.

Mine was staring ok .Then after few seconds it would stop.It then took a long crank to get it running,when it's started it was rough idle.I changed the t piece on filter as I could see air drawn into the low presure pump.Aur was still there so I put clear pipe in supply line no air was being drawn into filter.I bypassed t piece but air was still there. Still had start issue of stopping after few seconds.Bought a genuin filter .problem cured .I was the cheep filter I bought on E bay.Now starts ok and idles smoothly.


To add to my first reply.Start issue was only after jeep had not been running for over 6 hours. I guess fuel was running back down the fuel line as air was very slowly being drawn in through the filter

1 of 1 people found this helpful.

try everything codes are p1683 what do i do


Similar issue, car shutting off after about 3 seconds and the red dash light flashing, tried disconnecting battery 10 mins, tried again but this time it wouldn't start anymore, just clicks with red theft light in dash flashing. Read a few forums. Determined it was a key not recognized issue. The key fob buttons haven't worked in 3 years even after replacing battery and I didn't have a spare but after reading that some changed the battery and car started. Just to rule that out, i disconnected battery again and then went and replaced battery on key fob. Reconnected battery on car and then tried to start, and I couldn't believe it, the car started and my key fob began working again, all the buttons. So Id say before taking to a dealership, tried disconnecting battery and replacing key fob battery first. Could save you $$$$!

1 of 1 people found this helpful.

Please help very long experience in my Grand Jeep Cherokee model 2005 Problem, after long or short run i will shut off , then few minutes i will started but after about 5 seconds it shut off and we need to standby almost 8 hours to start again, please help me to solve this problem , Im here now in Saudi Arabia but I m no is the Pilipino. Thanks

2 of 2 people found this helpful.

My neighbors 1998 Jeep's security systems alarm kept going off and the engine would shut off after a few seconds. I found that taking your factory ignition key and inserting it into the rear hatchback key slot and turning it right and left stopped the constant alarm noise going on and off and it also let the engine run continuously without shutting itself down. Fixed the Issue!


Start but shut of

1 of 1 people found this helpful.

my jeep loredo turns on then right off the gages dont work eather and windows

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