My jeep wont start.

motoxno53 · 10-04-2006, 11:33 AM

Hello I have a 1991 Jeep choerokee lorado with the inline 6. I went out and started it to warm up yesterday and came out 10-15 min later and it was shut off... and now i can not get it to start... It does have spark and I think its getting fule but i shot some starting fluid in it to check and still no fire, pop, or anything. got a new crank sensor and still nada, pulled it up on to top dead center of #1 and made sure the rotor was on #1 to check to see if cam chain jumped and its matching up still has about 100 lbs of compresson.
NOW WHAT? IM LOST?
Chris
motoxno53@yahoo.com

**bruiser** · 10-04-2006, 01:40 PM

If it cranks normally, and the starting fluid did nothing, it's time to check the ignition.

Spacemonkey6401 · 10-04-2006, 04:55 PM

Pull a plug wire, pull a spark plug, put the spark plug back on the plug wire, hold away fromt the end of the sparkplug and hold it towards something metal, and make sure you got spark.

i6power · 10-05-2006, 11:06 AM

Does it make any noise when it tries to start? Do you have lights? Make sure its not something as simple as a corroded battery terminal.

**carsey** · 10-06-2006, 01:44 PM

Check fuel is getting into the engine. Make sure the fuel hoses are not blocked.

**JamesO** · 10-09-2006, 05:44 PM

If there is no kick with starting fluid, the problem is most likely ignition.

First I would check all the fuses just to make sure there is not a blown fuse.

Coils can and do go bad. Additionally there are a lot of ignition sensors that can go bad. Hard to give you an idea as to where to start looking.

Might check these links for some ideas:

http://www.autozone.com/servlet/UiBr...3d80151bf3.jsp

http://www.autozone.com/servlet/UiBr...3d80153e8f.jsp

Figure 29

Ballast resistor and ballast resistor bypass relay are a few other places to focus on as well. Easy to test and rule out if they are good.

JamesO

chinacat · 10-10-2006, 07:20 AM

Mine does the same thing.......except I was driving mine......4 times when it all of a sudden decided to shut off on me. Then it doesn't start for awhiiiiiile afterwards. My dad's a mechanic though so he's trying to figure it out. It sucks riding the bus to school and back.

wheeliedart · 11-09-2006, 01:45 AM

Fuel, fire, air(compression). You've done a great job of diagnosing so far. check the fire again, what color is the spark? it should lean towards blue. If it has a hall effect sensor, thats what I'd suspect.

10-04-2006, 11:33 AM	#1 (permalink)
motoxno53 Registered User Join Date: Oct 2006 Posts: 1 OS: XP	My jeep wont start. Hello I have a 1991 Jeep choerokee lorado with the inline 6. I went out and started it to warm up yesterday and came out 10-15 min later and it was shut off... and now i can not get it to start... It does have spark and I think its getting fule but i shot some starting fluid in it to check and still no fire, pop, or anything. got a new crank sensor and still nada, pulled it up on to top dead center of #1 and made sure the rotor was on #1 to check to see if cam chain jumped and its matching up still has about 100 lbs of compresson. NOW WHAT? IM LOST? Chris motoxno53@yahoo.com

10-04-2006, 01:40 PM	#2 (permalink)
bruiser TSF Enthusiast Join Date: Jul 2005 Posts: 1,973 OS: xp	If it cranks normally, and the starting fluid did nothing, it's time to check the ignition.

10-04-2006, 04:55 PM	#3 (permalink)
Spacemonkey6401 Registered User Join Date: Jul 2006 Location: KS, US Posts: 47 OS: Win XP	Pull a plug wire, pull a spark plug, put the spark plug back on the plug wire, hold away fromt the end of the sparkplug and hold it towards something metal, and make sure you got spark.

10-05-2006, 11:06 AM	#4 (permalink)
i6power Registered User Join Date: Oct 2006 Posts: 9 OS: xp	Does it make any noise when it tries to start? Do you have lights? Make sure its not something as simple as a corroded battery terminal.

10-06-2006, 01:44 PM	#5 (permalink)
carsey Moderator, TSF Articles Join Date: Aug 2006 Location: Hunwick, Co. Durham England Posts: 10,678 OS: XP Pro SP3 My System	Check fuel is getting into the engine. Make sure the fuel hoses are not blocked.

10-09-2006, 05:44 PM	#6 (permalink)
JamesO Join Date: Mar 2005 Location: Fairfax, VA USA Posts: 2,289 OS: 98SE, W2k Pro, XP Pro	If there is no kick with starting fluid, the problem is most likely ignition. First I would check all the fuses just to make sure there is not a blown fuse. Coils can and do go bad. Additionally there are a lot of ignition sensors that can go bad. Hard to give you an idea as to where to start looking. Might check these links for some ideas: http://www.autozone.com/servlet/UiBr...3d80151bf3.jsp http://www.autozone.com/servlet/UiBr...3d80153e8f.jsp Figure 29 Ballast resistor and ballast resistor bypass relay are a few other places to focus on as well. Easy to test and rule out if they are good. JamesO

10-10-2006, 07:20 AM	#7 (permalink)
chinacat Registered User Join Date: Jun 2004 Location: New York Posts: 143 OS: WinXP	Mine does the same thing.......except I was driving mine......4 times when it all of a sudden decided to shut off on me. Then it doesn't start for awhiiiiiile afterwards. My dad's a mechanic though so he's trying to figure it out. It sucks riding the bus to school and back.

11-09-2006, 01:45 AM	#8 (permalink)
wheeliedart Registered User Join Date: Feb 2006 Posts: 16 OS: WinXP pro	Fuel, fire, air(compression). You've done a great job of diagnosing so far. check the fire again, what color is the spark? it should lean towards blue. If it has a hall effect sensor, thats what I'd suspect.