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Topic Review (Newest First)
04-12-2014 10:46 AM
Nubby55 X2 on putting some oil in each cylinder, been reading the post and thinking the same thing, now here I see that someone has also said that. Good Luck! No Sucky, No K-Boom!!
04-11-2014 08:21 AM
peety
Quote:
Originally Posted by jstiley1 View Post
update...ran compression test...all 4 cyl held compression....so not a sticky valve i guess
Hi,
Just read the entire post...

Are the ignition wires in the correct locations, Firing Order 1-3-4-2 from the front to the rear. Check Chilton for the cap location, I would also google the locations, just in case Chilton is wrong.

What is your fuel presure ?

Does the oil smell like fuel ?

Engine 101 SUCK, SQUEEZE BANG BLOW---intake (air/fuel), compression, power stroke (ignition spark), exhaust...

What were the compression (squeeze) readings, I know it's been a while.
Just because you have compression, does not mean that you have enough (115-150 psi-ish). Keep in mind that the engine needs vacuum (suck) also, compression works in both directions, insufficient compression also equates to insufficient vacuum. If the piston rings are washed down there will not be enough to fire the engine, try adding a very small squirt of oil to each cylinder and set is sit for an hour or so, this will fill the voids between the rings and the bore. This will allow for SUCK and SQUEEZE

Get a NOID light, connect it to the injector connector, attach a timing light to each plug wire, one at a time not four lights, and crank the engine, the lights should flash in sequence, 180 opposed, SUCK and POWER STROKE.

Please advise, and good luck.
Pete
04-10-2014 10:11 AM
Fishnic i had the same problem with gas laying at the bottom of the intake after the injector failed on me. i had to stick a rag in there to soak up the fuel before i could get it to turn over
04-10-2014 08:24 AM
hotshot123
Quote:
Originally Posted by jstiley1 View Post
i have pulled timing chain...reset...got distro set...made sure everything is in order with timing...still no luck ... no back fire...to me the issue is the gas is not making it to where it needs to go...basically the gas is pooling in the intake and what ever makes it suck in to the engine is failing....forgive me for being naive about the internals...any suggestions? my wife is ready to take it to a shop...which is a huge slap in the face after all the time and money i have put into it...i just feel like there is one missing piece to this puzzle...
You should take it to someone who can get it timed right probably. If you have compression, fuel, and spark it WILL run as long as the spark is at the right time. if the timing is close enuf that it kinda wants to start, it should spin really easy and fast if the timing is way low, if it is way high then the starter will have a hard time turning the motor over.
04-10-2014 07:58 AM
jstiley1 im baaack...had another project to get back on the road...completed...back to the jeep now...just to catch potential readers up to speed....it will crank all day long ... i get a back fire out of intake every so often...since i have posted last i replaced the ECM just for grins..however still no start.... my main concern is the fact that my injector is dumping gas in the intake when i open the TB i can see the gas in there...i had replaced the injector hoping to fix that and no luck...
10-15-2013 12:50 PM
jstiley1 The 2.5 doesn't have one.. I actually put a whole new distributor in it though
10-15-2013 12:39 PM
sevenservices have you tried a new pick up coil on the bottom of the distributor if it has one? My buddies XJ just had the exact same syptoms and after beating our heads on it for days we took it to someone. He changed a plastic ring w/wires under the distributor (pick up coil) and whalla! Fired right up and he drove back from Georgia to Michigan the next day.

Its like $13.00 and makes a world of difference.

http://www.partsgeek.com/gbproducts/...FWZyQgodGWEAUA
10-14-2013 04:12 PM
Az88YJ Similar to mine when I crank fuel pools in TB and wont start. Have someone crank it and while they are cranking it unplug the white injector and see if it will fire. If it does push it back on and see if it stays running.
10-14-2013 10:19 AM
jstiley1 i have pulled timing chain...reset...got distro set...made sure everything is in order with timing...still no luck ... no back fire...to me the issue is the gas is not making it to where it needs to go...basically the gas is pooling in the intake and what ever makes it suck in to the engine is failing....forgive me for being naive about the internals...any suggestions? my wife is ready to take it to a shop...which is a huge slap in the face after all the time and money i have put into it...i just feel like there is one missing piece to this puzzle...
10-12-2013 12:42 PM
jstiley1 Yah I'm not setting the timing..I'm trying to get everything in order.. as in all in sync... I replaced the timing chain and don't think I did it correctly so I pulled everything back off and trying to do it right hopefully... just have to get all lined up...
10-12-2013 12:32 PM
jokerchief462 You don't get the option of setting the timing on the 89 2.5L engine. It is done by the ECU. It reads the inputs from all the sensors and adjusts as required.

So yes the valves need to be closed just don't forget its a 4 cycle engine.
10-12-2013 11:30 AM
jstiley1 Ok I have pulled the valve cover.. I'm trying to set timing I'm reading an earlier reply and it says valves closed.. just making sure that the rocker on the push rod side should be down and spring side up to indicate valves closed correct?
08-17-2013 06:31 AM
Sahara1995 When you say it lags do you mean it almost sounds like a weak battery kind if crank? That an happen with timing advance a few degrees. I had a built mustang that when tweaking the timing for performance would do that sometime when starting. So I kinda agree sounds like timings off a bit. Check it with the light first before you hassle with going all the way in an doing the chain again. Mine was only a few degrees advanced from spec.
08-12-2013 07:05 PM
jstiley1 ok i have confirmed that fuel is misting out...pulsing with the engine...im gonna assume that the timing is still off...dang it....when it cranks every so often it changes sound, lags like almost freezes...then gets past it...do i need to be at TDC on compression as well when i put timing chain back on...
08-12-2013 03:47 PM
jstiley1 yes old gas is out...i used the proper rings...the only thing i cannot answer is if its misting out...i can see and start and i havent had any help around .....it just seems like whatever sucks gas into the engine isnt sucking it in there ...which sucks...pun intended
08-11-2013 02:55 PM
Fishnic
Quote:
Originally Posted by jstiley1 View Post
alright im back....i got a new injector and installed....still appears to be dumping gas....pool in intake...i have tried to install it with numbers on injector facing me and facing away...

did you dry out the old gas?

the injector comes with an assortment of o-rings/gaskets. did you use the correct rings? If the seals are not in the correct spots you will get fuel leaking down.

When you turn the key and look at the bottom of the injector (this pressurizes the fuel system and it sprays a mist into the intake for starting) does it mist out or dribble?
08-11-2013 12:53 PM
jstiley1 another ?...on the ignition control module..there are 3 plugins but only 2 plugs...does the 3 prong go in the top or bottom slot and is there a wire that goes on the blade type connector that close to coil?
08-11-2013 12:45 PM
jstiley1 alright im back....i got a new injector and installed....still appears to be dumping gas....pool in intake...i have tried to install it with numbers on injector facing me and facing away...
08-03-2013 07:11 PM
jstiley1 I give up for today gonna order a new injector next paycheck..I'll let talk know how that works..in the pool with a cold beer for now
08-03-2013 04:53 PM
jstiley1 Ok so don't need that then..I was hoping it was the magic key...this really stinks..its 108 here still having no luck..pulled distro got to tdc on compression stroke.got rotor pointing at 2nite still no change..there is fuel puddling in intake..haven't had a backfire..pulled o2 sensor to make sure exhaust not clogged
08-03-2013 04:24 PM
jokerchief462 Power steering plug. Compensates the idle under steering loads.

The one on the passenger side is the blower motor single prong.
08-03-2013 04:22 PM
Boystaysin
Quote:
Originally Posted by jstiley1 View Post
does anyone know where the heck this goes
I've got a plug just like that. It is connected on the passenger side of the block towards the firewall. Not sure what it does yet, I'm going through all the wiring this weekend. If I get any answers ill let you know.
08-03-2013 04:07 PM
RednekYJ Well, if you did have power steering that's what it is for. Here is mine and where it plugs into. It is used to bump the idle up when the pump is under load.


08-03-2013 03:38 PM
jstiley1 Plugs are black not wet
08-03-2013 03:07 PM
jstiley1 No power steering
08-03-2013 02:41 PM
RednekYJ Power steering..... Maybe.
08-03-2013 02:14 PM
jstiley1 does anyone know where the heck this goes
08-01-2013 03:40 PM
jstiley1 i know right...
08-01-2013 03:14 PM
Signalman If my ex got awarded my jeep you can bet your a$$ it would take years and tons of coin for next husband to figure out why it won't run to! You might want to check those break lines pretty good if the last guy was anything like myself.
08-01-2013 03:06 PM
jstiley1 fresh gas and filter yes...im gonna pull the injector and clean to....and i have never noticed exhaust ..
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