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Unread 04-04-2010, 11:38 AM   #1
jeep1993yj
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1993 YJ Wrangler 
 
Join Date: Jan 2009
Location: Mundelein, IL
Posts: 41
93 doesn't start

my 93 YJ 2.5L with 100K miles is not starting up. The other day, I was leaving to work it started but started hesitating and would stall. During my 5 mile trip to work it stalled 8/9 times and would start back up after few seconds. But I had to get it towed because in the evening it wouldn't start.
So it when I try to crank it tries to start the engine but looks like the engine dies right away. FUel pump is working fine, I hear the sound everytime I key in. I also checked the knob(for attaching fuel presseure gauage) on injector rail by pressing it with a key, it squirts the fuel so pressure is good.
I noticed little oil in air filter and throttle body. It looks like there is slight leak from valve cover gasket and the oil is getting into intake. I tried clen the throttle by sparying MAF sensor cleaner, sure enough after few cranks, it fired up and died again. It would fire up but die again after wards. I also noticed the the rubber adapter craked on (the little pipe that runs from front of jeep on driver side of injector rail to throttle body).

It seems like if take the inatke out and clean it and throttle body it might work, and I have to fix the valave cover gasket as well.

What you guys would advise?

Thanks,

__________________
1993 Jeep YJ - All stock
1994 Mustang GT 5.0/V8 - 4:10 gears SFC
2009 VW Tiguan
Motorcycles -
2001 Kawasaki Ninja zx7r -stock
1953 triumph Thunderbird 6T
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Unread 04-04-2010, 02:03 PM   #2
jeep1993yj
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1993 YJ Wrangler 
 
Join Date: Jan 2009
Location: Mundelein, IL
Posts: 41
bump

bump
__________________
1993 Jeep YJ - All stock
1994 Mustang GT 5.0/V8 - 4:10 gears SFC
2009 VW Tiguan
Motorcycles -
2001 Kawasaki Ninja zx7r -stock
1953 triumph Thunderbird 6T
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Unread 04-04-2010, 02:53 PM   #3
jeep1993yj
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1993 YJ Wrangler 
 
Join Date: Jan 2009
Location: Mundelein, IL
Posts: 41
bump


bump

bump

bump
__________________
1993 Jeep YJ - All stock
1994 Mustang GT 5.0/V8 - 4:10 gears SFC
2009 VW Tiguan
Motorcycles -
2001 Kawasaki Ninja zx7r -stock
1953 triumph Thunderbird 6T
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Unread 04-04-2010, 09:00 PM   #4
jeep1993yj
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1993 YJ Wrangler 
 
Join Date: Jan 2009
Location: Mundelein, IL
Posts: 41
I am very surprised that nobody replied yet.
Any advise please?
__________________
1993 Jeep YJ - All stock
1994 Mustang GT 5.0/V8 - 4:10 gears SFC
2009 VW Tiguan
Motorcycles -
2001 Kawasaki Ninja zx7r -stock
1953 triumph Thunderbird 6T
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Unread 04-05-2010, 09:12 PM   #5
zopi
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1993 YJ Wrangler 
 
Join Date: Mar 2010
Location: virginia
Posts: 16
Damn..I got the same treatment for the most...here's my guess..I am starting to get a handle on the weak POS I brought home..same symptoms as yours...I'd be willing to bet you burped some oil up into the intake and sucked it into something important...go a head and clean out the intake...prolly help..in one of the rare instances I got to drive the Heep (tm) I flopped it into a muddy ditch and it acts like I slopped some oil up into the crankcase breather (which obviously needs replacing along with most of the other crap under my hood..did I say POS?)
and the heep died...naught to run again for more than a couple seconds...bet we have the same issue..

Problem I have is that the bloody thing is such a hack job, i don't really know what goes where...

Oh well. It was free.

But it has carpet. Communist plot. No jeep with that many lights on it has any right to carpet.
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Unread 04-05-2010, 09:23 PM   #6
jeep1993yj
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1993 YJ Wrangler 
 
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Location: Mundelein, IL
Posts: 41
Thanks! I will clean-up and post. good luck wiht your jeep.
__________________
1993 Jeep YJ - All stock
1994 Mustang GT 5.0/V8 - 4:10 gears SFC
2009 VW Tiguan
Motorcycles -
2001 Kawasaki Ninja zx7r -stock
1953 triumph Thunderbird 6T
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Unread 04-05-2010, 10:17 PM   #7
zopi
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1993 YJ Wrangler 
 
Join Date: Mar 2010
Location: virginia
Posts: 16
you might check for gas in the oil...I just read another thread where the object of ire was the injector seals....
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Unread 04-06-2010, 06:26 AM   #8
Que89YJ
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1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit, Michigan
Posts: 15,653
Oil in the intake could be bad rings as well. Too much blow by on the rings. You might want to run a compression test and see where your cylinders are at. Cleaning the throttle body makes sense but focus on the IAC. Also do the basic checks like fault codes and removing a plug and checking the spark. Use some starter fluid and see if it fires up every time you spray into the throttle. Check for a vacuum leak. That hose you are talking about sounds like the vacuum for the pressure regulator.
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