95 wrangler yj engine issues 2.5 liter - Jeep Wrangler Forum
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Old 02-23-2013, 12:20 PM   #1
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Join Date: Feb 2013
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95 wrangler yj engine issues 2.5 liter

The problem is that it sounds like the timing is out on it when i turn it on. it will run ok and miss a little run semi smooth. i rev it and the engine light comes on and it stalls. restart, then it loads up and it start to flood with gas then backfires loudly 3-4 times sounds like a john deere 60 tractor when you gas it, then it will quit. try to restart and it vaporlocks unless i take out the f/p relay, then it starts then dies and backfires. 2.5 liter auto trans 95 wrangler is what i am serviceing. i know it has good fuel presure, new fuel pump, 35PSI then 40 psi when you remove the vacumm to the fuel regulator with the few mins i had it running i checked the fuel presure. spark is ok also. compression is 150psi 1-3 cyl then 160psi on the 4th cyl. I have replaced the timing chain, timed it according to the haynes manual. distributor was installed according to the haynes manual, 10 o clock on the oil pump gear and putting that pin to keep the rotor still. The entire ignition system has been gone through... all the sensors related to the ignition system, crank positon sensor, coil pickup, COIL its self, and cap/rotor / spark plugs have been replaced. I am wondering what the heck is wrong with my jeep that it won;t run! check engine light comes on then goes off when you get it started. i haven't pulled codes yet.

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Old 02-23-2013, 12:24 PM   #2
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also... if i just idle it say from letting it sit after taking out sparkplugs and lighting all the gas in the cylinders with a stick lighter, it will run semi ok and sputter and miss a bit. for 3-5 mins then two cyl cut out then it floods and dies out.

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Old 02-23-2013, 12:26 PM   #3
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i want to go jeeping with this thing! lol its annoying, like a money pit/
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Old 02-23-2013, 07:22 PM   #4
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Join Date: Mar 2011
Location: Derry PA
Posts: 301
check to make sure the cat isnt plugged up
__________________
1995 wrangler 4 cyl 5 speed soft top
1" poly body lift,2.5 ome 1" shackle, 32" swampers lock right in the d-30 more to come
2003 ford f-250 SD sc auto 4x4 7.3 diesel not stock any more
98 TJ 2.5 was a basket case, heart transplant, interior repaint, some taller springs,new shocks, newer top, pissin me off with stupid problems
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Old 02-26-2013, 07:54 PM   #5
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i have verified the cat is ok. the exaust leaks at the manifold so it should run... has good fuel and spark.. checked the codes, had a 12, 33, 41, had code 27 also.
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