Jeepinbush

My 91 jeep cherokee limited starts but stalls right away. It started doing this after the battery was unpluged. I think its the factory alarm, I've tried licking unlock passenger door and lift gage but it still does the same thing. Does anyone know what's wrong with it or does anyone know how to bypass the factory alarm.

DaddyCat

I found this, hope it helps:

"Ok, I fixed the problem with my jeep and reset the alarm. For anyone else who encounters this problem:
1 Disconnect the battery for about a minute or two. Reconnect the battery and go through the procedure to reset the alarm (going to the back hatch and turning the key left in the lock, then turning the key in the driver's door)
2 If step one doesn't work, Check the battery itself to make sure it's not dead or doesn't need charging. Also check the battery cables themselves to make sure they aren't bad (this ended up being my problem, as soon as I changed the battery cables, the jeep let me reset the security alarm.)
I hope this helps if your having this problem."

Jeepinbush

It stops the lights from blinking but it will still not start.it stats and stalls right away

DaddyCat

"It stops the lights from blinking..........."

Please try to be clear so I'm able to help you. What stops the blinking?
Dis and reconnected battery and key trick, fully charged or new battery or new battery cables? Tell me exactly what you tried so I don't have to guess.

Jeepinbush

Ive tried the key unlocking thing and the alatm goes off but the car still did the same thing by starting for a second and then dies again

DaddyCat

Check you battery and cables. My first post said this solved the person's problem that sounds just like yours.
http://www.2carpros.com/articles/how...-a-car-battery

Jeepinbush

Ok I will do that

Jeepinbush

Checked the battery cables and i think its good but it still does the same thing

HeepJeeper

does your jeep have the ceramic resistor on the driver side inner fender near the airbox its a 3-4 in long white block with 2 plugs on it.
if so try messin with that

HeepJeeper

Jeepinbush

Ill have a look at it in the morning if its not that I'm out of things to look for.. Its getting me frustrated I'm bout ready to buy myself a new one.

Jeepinbush

I have heard it might be the pcm but I don't know what a pcm is and where its located. if anyone knows where its located please tell me so I casn check it out

tjwalker

The "ballast resistor" is definitely in play. A 91 WILL have this resistor!

When they go bad, the engine will start because that resistor is bypassed when the key is in the full start position, but the resistor is back in circuit when the key is released.

So it starts, but only runs until you back off the key. Sound familiar??

This resistor is to reduce noise in the fuel pump circuit. Try jumpering it. If it works when the wires are jumpered or connected together (eliminating the resistor), then you have smoking gun proof. This only takes about 5 minutes.

If it works that way, you can either leave it jumpered or you can replace it. Later models don't even have this resistor, it is NOT a part that has to be installed.

Let us know what you find, but this resistor is the #1 thing to check.

DaddyCat

WOW! these jeeps have so many strange quirky problems. I'm glad we have this forum and knowledgeable people willing to help.

Jeepinbush

Ive tried jumping it but it still does the same thing. When I do the engine code thing it throws code 12 and I don't know what it is or what I need to chang or.