Calgary Jeep Association

4x4 Related Groups => Tech Talk => Topic started by: 2grand4u on February 16, 2010, 06:47:40 PM

Title: jeep tj stalling
Post by: 2grand4u on February 16, 2010, 06:47:40 PM
i have a 97 jeep tj with a 2.5 and i can only drive for  a couple min befor shy bogs then drops to about 100 rpm then just stalls, if i wait 5 min it fires write up and gose for another minute or so. made for a very interesting ride from wiperious(spelt wrong but to lazy to fix) monday.

thxx Ryan
Title: Re: jeep tj stalling
Post by: Immortal on February 16, 2010, 07:43:40 PM
Crank positioning sensor?

Spell check is your friend.
Title: Re: jeep tj stalling
Post by: 2grand4u on February 16, 2010, 08:46:08 PM
i think i'm going to try the cps and the cts and see what happens
Title: Re: jeep tj stalling
Post by: JackstandJohnny on February 16, 2010, 09:30:21 PM
pull your codes first ryan.  throwing sensors at it will be expensive.  see what the code says first then go from there.  try the key three turn trick first. 
if it were you CPS it would crank then die right away.......
Title: Re: jeep tj stalling
Post by: jonny5 on February 17, 2010, 12:42:03 PM
Fuel filter? Not enough flow.
Is it that kind of feeling?
Title: Re: jeep tj stalling
Post by: 2grand4u on February 17, 2010, 04:11:45 PM
it's not trowing any codes Johnny, and it could be the fuel pump but i need to start eliminating thing so i can find the problem
Title: Re: jeep tj stalling
Post by: 4Banger_madness on February 17, 2010, 07:13:38 PM
test fuel pressure and test the sensors before u change them
Title: Re: jeep tj stalling
Post by: 2grand4u on February 17, 2010, 07:31:04 PM
how do you test the sensor?
Title: Re: jeep tj stalling
Post by: 4Banger_madness on February 17, 2010, 07:39:08 PM
im sure theres test procedures from mithchel or aldata let me check
Title: Re: jeep tj stalling
Post by: 4Banger_madness on February 17, 2010, 07:46:17 PM
cant get on it right now ill try at work in the am
Title: Re: jeep tj stalling
Post by: apex on February 17, 2010, 09:49:38 PM
I had a similar symptom. Turned out to be my starter. Something to consider.
Title: Re: jeep tj stalling
Post by: rangerdanger on February 18, 2010, 11:40:06 AM
Sounds like a lack of fuel, either a weak pump or clogged filter, my 97 jimmy had the same symptoms and a new pump/filter solved the trouble.
Title: Re: jeep tj stalling
Post by: specialk on February 18, 2010, 11:52:03 AM
Did you move your fuel cell into the back of your rig?  I remember you posting something about that a while ago... 
Title: Re: jeep tj stalling
Post by: 2grand4u on February 18, 2010, 04:26:17 PM
Did you move your fuel cell into the back of your rig?  I remember you posting something about that a while ago... 

ya i did but i never had any problems

oh and i forgot to add it started acting up after i washed the engine compartment (i stayed away from the computer)
Title: Re: jeep tj stalling
Post by: 2grand4u on February 18, 2010, 04:27:46 PM
i hope it's not the pump because i doubt jeepstuff is warrenting the things they sell after they closed
Title: Re: jeep tj stalling
Post by: JackstandJohnny on February 18, 2010, 04:29:13 PM
does it die when you give it gas ryan?  does it idle fine?  but when you step on it it bogs and dies?

did you get your distributor wet when u washed it? 
Title: Re: jeep tj stalling
Post by: 2grand4u on February 18, 2010, 04:36:04 PM
it idles fine and drives fine for about a kilometer be for if dies, no mater what speed i am going it dies in the same distance, my distributor is sealed( i sealed it when i did my snorkel)

would the coolent temp sensor do this you think because i just changed the thermostat and had it all apart?  and after i changed it i washed the engine to get the coolent off

i'm at a loss to what it could be
Title: Re: jeep tj stalling
Post by: 2grand4u on February 18, 2010, 04:36:50 PM
I had a similar symptom. Turned out to be my starter. Something to consider.

it starts fine
Title: Re: jeep tj stalling
Post by: 4Banger_madness on February 18, 2010, 05:36:10 PM
i was didnt have time to look at work today sorry
Title: Re: jeep tj stalling
Post by: morerpmfred on February 18, 2010, 06:25:37 PM
Your distributor is sealed ?  The air inside there gets very hot and in ionizes and then it quits sparking.             if you want to water proof it run a vacuum line to the distributor and a supply line from your air filter then  WHEN YOU GO SPLASH IN THE WATER HOLE THE DISTRIBUTOR WILL NOT CREATE A VACUUM WHEN IT COOLS OF AND SUCK WATER IN.
Title: Re: jeep tj stalling
Post by: 2grand4u on February 18, 2010, 07:12:45 PM
Your distributor is sealed ?  The air inside there gets very hot and in ionizes and then it quits sparking.             if you want to water proof it run a vacuum line to the distributor and a supply line from your air filter then  WHEN YOU GO SPLASH IN THE WATER HOLE THE DISTRIBUTOR WILL NOT CREATE A VACUUM WHEN IT COOLS OF AND SUCK WATER IN.

make's sense, i'll do that when i change it out i'm going to change a hole mack of shiz under my hood as soon as i get the tax money ;D
Title: Re: jeep tj stalling
Post by: JackstandJohnny on February 19, 2010, 08:35:13 AM
make's sense, i'll do that when i change it out i'm going to change a hole mack of shiz under my hood as soon as i get the tax money ;D

is that like, Canmore slang for you're gonna fix your crap?  ;)

theres a real simple solution if the dist. is sealed;  there should be a breather valve on the top of the distributor. (most do) pull it and run some tubing/hose, whatever straight up. that'll act as  a breather and keep your dist. sealed.
you can also get real fancy, pull the cap, and tap a fitting into it and run the same kind of tubing upwards.   i've done it many times with success.  try that first Ryan. its cheap, and easy!
Title: Re: jeep tj stalling
Post by: jpthing on February 19, 2010, 09:08:30 AM
I have a buddy from venezueala who used to race offroad back home, they do these cross country rally races with mostly toyotas, lots of water involved.
He told me they would run a line to the distributor that was hooked up to a small compressor in the glovebox or similar, and whenever they went through deep water they would turn it on.
According to him you could pop the hood in water and watch a stream of bubbles escape from the distributor vent.
Title: Re: jeep tj stalling
Post by: 2grand4u on February 19, 2010, 01:45:14 PM
fuel pressure is like 45, 47 i have a picure of the gage but can't get her on here

i don't think the fuel pump is the problem
Title: Re: jeep tj stalling
Post by: muffintop on February 20, 2010, 10:21:43 AM
make's sense, i'll do that when i change it out i'm going to change a hole mack of shiz under my hood as soon as i get the tax money ;D

Another potential problem with a sealed distributor is condensation (water) cant get out. GM's Optispark system is a classic example of that. Google "GM Optispark" for either problems or fixes. It will give you some well documented & proven ideas that can be translated to most ignition systems.