1995 jeep yj starting problems - JeepForum.com

 
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post #1 of 7 Old 07-11-2013, 08:05 PM Thread Starter
Maloni
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Join Date: Jul 2013
Location: Langley
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1995 jeep yj starting problems

My 1995 jeep yj 2.5l 5 speed was sitting for almost 10 years.

First thing I did was remove old fuel and did a complete tune up (oil change,fuel filter,rotor dist. Cap plugs wires.)

Added lucas fuel treatment( full bottle not sure if it was a mistake :s)and fresh fuel and hand cranked motor before starting.

Would turn over but wouldn't fire so I checked fuel pressure to learn the fuel pump was done so I dropped the tank and replaced the pump and she fired up ran a little rough and then smoothed out.

Now after about 50 km of trouble free driving over about a weeks time one morning she didn't want to start but did after a few attempts but now doesn't want to start at all.

Here is what I have troubleshooted
-fuel pressure is 35psi
-has lots of spark
-new map sensor (it threw the code)
-I squirted a tiny shot if starting fluid in the intake and she fired and ran like absolute **** with a fair bit of smoke but stayed running (maybe injectors are the clogged but no code shows.

I'm stumped any help would be greatly appreciated.

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post #2 of 7 Old 07-11-2013, 08:49 PM
XJ93
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1993 ZJ 
 
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Location: Michigan
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Pull the injectors and clean them up, throw them back in with new o-rings.
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post #3 of 7 Old 07-11-2013, 09:39 PM Thread Starter
Maloni
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Any special advice for cleaning them?
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post #4 of 7 Old 07-12-2013, 05:19 AM
XJ93
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I used 3M fuel injector cleaner on mine and scrubbed the heck out of them with an old toothbrush.
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post #5 of 7 Old 07-12-2013, 05:51 AM
Siva283
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1995 YJ Wrangler 
 
Join Date: May 2011
Location: Falling Waters
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Your fuel pressure is also high. Might want to check into the regulater. What color was the smoke?

1995 YJ. 2 inch BDS Spring lift. 1 inch shackle lift. 1.25 inch JKS Body Lift 33x12.5x15's. Engo 10,000 pound winch.

Quote:
Originally Posted by Magnum View Post
I gave the Jeep the required offering of $$, sweat, and blood, and everything works fine now. -- Jim
Quote:
Originally Posted by ldso View Post
. It started with a $200 axle, and a few thousand dollars later I was done :)
Quote:
Originally Posted by Luuca View Post
diagnose the real issue before you start going all Obama on it - spending mad cash you'll need for other important things.

Ask me how I know...
Quote:
Originally Posted by Overhead View Post
this is also my second set of RC springs this year. I'd rather spend the money again and get something that will last.
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post #6 of 7 Old 07-12-2013, 08:54 AM Thread Starter
Maloni
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What should the pressure be at I was told 35 was rite on the money. How do I check the regulator thanks
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post #7 of 7 Old 07-12-2013, 09:28 AM
Siva283
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1995 YJ Wrangler 
 
Join Date: May 2011
Location: Falling Waters
Posts: 3,745
It should be 31 psi during idle and cranking. It should be 39 at wide open throttle. To test this hook a fuel pressure gauge up and fire up the engine. With it running at idle not the pressure. Now disconnect the vacuum line with it still running.(The vacuum line plugs into a round disc like thing(Thats the regulator) on the grill side of the fuel rail) When you disconnect that vacuum line it should jump to 39 psi.

1995 YJ. 2 inch BDS Spring lift. 1 inch shackle lift. 1.25 inch JKS Body Lift 33x12.5x15's. Engo 10,000 pound winch.

Quote:
Originally Posted by Magnum View Post
I gave the Jeep the required offering of $$, sweat, and blood, and everything works fine now. -- Jim
Quote:
Originally Posted by ldso View Post
. It started with a $200 axle, and a few thousand dollars later I was done :)
Quote:
Originally Posted by Luuca View Post
diagnose the real issue before you start going all Obama on it - spending mad cash you'll need for other important things.

Ask me how I know...
Quote:
Originally Posted by Overhead View Post
this is also my second set of RC springs this year. I'd rather spend the money again and get something that will last.
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