93 grand cherokee limited

72'CaminoKid · 12-04-2008, 02:52 PM

hey ya'll. this is my brothers ride and i have yet to look at this problem. but from what he's saying, it will crank and run for about a second or two. then shut off. only issues i know of with it are that the exhaust is not connected after the manifold and its got a bad rear main seal leak. its gotten pretty cold here lately, could the cold and exhaust combo be doing something with it or could the oil leak cause some sort of oil pressure safety switch to shut down the engine? he said the second or so it runs, it runs perfectly fine. also, is there a port anywhere to hook up a scanner to try and pull some codes?

see error · 12-04-2008, 03:41 PM

i dont really remember but i believe when the map sensors went bad on the earlier ones they acted like that do a search and check if it happened on 93 models as well

mudseeker · 12-04-2008, 03:48 PM

does his oil gauge move when he cranks it or when it does run? if not could be a bad pressure switch.

elbrannen · 12-04-2008, 04:30 PM

I6 or V8 motor

72'CaminoKid · 12-04-2008, 05:07 PM

V8, i'll look up some stuff on that map sensor. let me know if you run across anything. and not sure yet mud. i wont get to look at it until this weekend. could a bad oil pressure switch or just lack of oil pressure force the engine to shutdown? like as a safety precaution so it doesnt run without oil or anything

mudseeker · 12-04-2008, 05:31 PM

you got it!

72'CaminoKid · 12-04-2008, 05:38 PM

i'm completely unfamiliar with this engine so i wasnt sure, this is why i hate computer ****. so hard to find problems sometimes

mudseeker · 12-04-2008, 05:46 PM

it's only a 93, wait untill you tear in to something with OBDII or the OBD3 they're rolling out.

72'CaminoKid · 12-04-2008, 05:57 PM

never even heard of OBD3.... the silverado has OBDII if i'm not mistaken, and i know all about them dang o2 sensors and ****

72'CaminoKid · 12-04-2008, 05:58 PM

anyways, anyone know where i can plug in an OBD scanner? i've found a method to pull codes online, but it doesnt use a scanner, was wondering if theres a port i can plug into instead of this.... (and it'd be nice if someone can verify this method)

You can check the codes yourself.

Turn the key ON, OFF, ON, OFF, ON - the check engine light will begin to flash out the codes in double digit form, there is a short pause between each digit and a long pause between each code.

example:
| pause || - 1 pause 2 = code 12
||||| pause ||||| - 5 pause 5 = code 55

Just post your results here and I will let you knwow hat the codes mean.

12-04-2008, 02:52 PM	#1
72'CaminoKid Senior Member Join Date: Jun 2005 Posts: 2,756	93 grand cherokee limited hey ya'll. this is my brothers ride and i have yet to look at this problem. but from what he's saying, it will crank and run for about a second or two. then shut off. only issues i know of with it are that the exhaust is not connected after the manifold and its got a bad rear main seal leak. its gotten pretty cold here lately, could the cold and exhaust combo be doing something with it or could the oil leak cause some sort of oil pressure safety switch to shut down the engine? he said the second or so it runs, it runs perfectly fine. also, is there a port anywhere to hook up a scanner to try and pull some codes? __________________ 99 suburban xlt 96 silverado 91 wrangler (my baby ) 08 Honday shadow 750 (my mistress)

12-04-2008, 03:41 PM	#2
see error Senior Member Join Date: Jul 2008 Location: tallahassee, fl Posts: 169	i dont really remember but i believe when the map sensors went bad on the earlier ones they acted like that do a search and check if it happened on 93 models as well __________________ 2004 gmc 1500 cc 4x4

12-04-2008, 03:48 PM	#3
mudseeker Senior Moderator Join Date: Feb 2006 Location: michigan Posts: 6,374	does his oil gauge move when he cranks it or when it does run? if not could be a bad pressure switch. __________________ i'd rather be hunting

12-04-2008, 05:07 PM	#5
72'CaminoKid Senior Member Join Date: Jun 2005 Posts: 2,756	V8, i'll look up some stuff on that map sensor. let me know if you run across anything. and not sure yet mud. i wont get to look at it until this weekend. could a bad oil pressure switch or just lack of oil pressure force the engine to shutdown? like as a safety precaution so it doesnt run without oil or anything __________________ 99 suburban xlt 96 silverado 91 wrangler (my baby ) 08 Honday shadow 750 (my mistress)

12-04-2008, 05:31 PM	#6
mudseeker Senior Moderator Join Date: Feb 2006 Location: michigan Posts: 6,374	you got it! __________________ i'd rather be hunting

12-04-2008, 04:30 PM	#4
elbrannen Full Member Join Date: Dec 2008 Location: Haines City,Florida Posts: 13	I6 or V8 motor

12-04-2008, 05:38 PM	#7
72'CaminoKid Senior Member Join Date: Jun 2005 Posts: 2,756	i'm completely unfamiliar with this engine so i wasnt sure, this is why i hate computer ****. so hard to find problems sometimes __________________ 99 suburban xlt 96 silverado 91 wrangler (my baby ) 08 Honday shadow 750 (my mistress)

12-04-2008, 05:46 PM	#8
mudseeker Senior Moderator Join Date: Feb 2006 Location: michigan Posts: 6,374	it's only a 93, wait untill you tear in to something with OBDII or the OBD3 they're rolling out. __________________ i'd rather be hunting

12-04-2008, 05:57 PM	#9
72'CaminoKid Senior Member Join Date: Jun 2005 Posts: 2,756	never even heard of OBD3.... the silverado has OBDII if i'm not mistaken, and i know all about them dang o2 sensors and **** __________________ 99 suburban xlt 96 silverado 91 wrangler (my baby ) 08 Honday shadow 750 (my mistress)

12-04-2008, 05:58 PM	#10
72'CaminoKid Senior Member Join Date: Jun 2005 Posts: 2,756	anyways, anyone know where i can plug in an OBD scanner? i've found a method to pull codes online, but it doesnt use a scanner, was wondering if theres a port i can plug into instead of this.... (and it'd be nice if someone can verify this method) You can check the codes yourself. Turn the key ON, OFF, ON, OFF, ON - the check engine light will begin to flash out the codes in double digit form, there is a short pause between each digit and a long pause between each code. example: \| pause \|\| - 1 pause 2 = code 12 \|\|\|\|\| pause \|\|\|\|\| - 5 pause 5 = code 55 Just post your results here and I will let you knwow hat the codes mean. __________________ 99 suburban xlt 96 silverado 91 wrangler (my baby ) 08 Honday shadow 750 (my mistress)

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