Topic: Help 1997 2.5 petrol Cherokee Wont Start (Read 8390 times)

prmacb · « **on:** June 11, 2012, 02:58:06 PM »

Hi all,

I need some help. Bought my first Jeep yesterday. Drove it home 60ish miles. Was in and out all day yesterday with no problems at all. Today when I went to start it it turns over fine but just wont fire. Am i missing somthing? Is there a fuel cut off i might have hit.

Any help would be greatly appreatiated. I am getting it in the ear from her indoors for buying a duff car!!!

Cheers
paul

jay140285 · « **Reply #1 on:** June 11, 2012, 03:06:48 PM »

Welcome. sorry to here your trouble.

Sounds like an immobiliser issue.

Someone will be along soon who can offer advice on a technical level.

prmacb · « **Reply #2 on:** June 11, 2012, 03:08:48 PM »

Quote from: jay140285 on June 11, 2012, 03:06:48 PM

Welcome. sorry to here your trouble.

Sounds like an immobiliser issue.

Someone will be along soon who can offer advice on a technical level.

Thanks I hope so. Im gutted i have wanted one of these for years. I just want to go and play now. ?.

tag · « **Reply #3 on:** June 11, 2012, 03:52:13 PM »

Hi, is the security light on above the volts meter on the dash? are you pressing the clutch

prmacb · « **Reply #4 on:** June 11, 2012, 04:01:20 PM »

Quote from: tag on June 11, 2012, 03:52:13 PM

Hi, is the security light on above the volts meter on the dash? are you pressing the clutch

Hi tag,

No security light. But if i sit in the car for a few mins it will come on (flashes) and the engine wont turn over until I press the unlock button again. I guess this is normal.

Yes clutch is down. It is turning over just not fireing.

Thanks for your help

Paul

tag · « **Reply #5 on:** June 11, 2012, 04:05:51 PM »

sounds like bad crank sensor........ lets you turn it over but no fire

prmacb · « **Reply #6 on:** June 11, 2012, 04:07:33 PM »

Quote from: tag on June 11, 2012, 04:05:51 PM

sounds like bad crank sensor........ lets you turn it over but no fire

Is there anyway to test it? Would that not trigger the check engine light? I have plugged my code reader in and there was no codes?

tag · « **Reply #7 on:** June 11, 2012, 04:17:03 PM »

check the connection that's under inlet manifold , follow the wire from the sensor that comes up back of engine right side
should go to plug/socket connection under manifold. mine came loose fell on exhaust melted and caused your problem intermittent.........

prmacb · « **Reply #8 on:** June 11, 2012, 04:27:29 PM »

Quote from: tag on June 11, 2012, 04:17:03 PM

check the connection that's under inlet manifold , follow the wire from the sensor that comes up back of engine right side
should go to plug/socket connection under manifold. mine came loose fell on exhaust melted and caused your problem intermittent.........

All looks ok. Took the plastic part off the top of the throtte body and had a good look.

tag · « **Reply #9 on:** June 11, 2012, 04:32:35 PM »

try cranking with a plug out, check for a spark, crank sensor kills the spark........

prmacb · « **Reply #10 on:** June 11, 2012, 04:44:53 PM »

Quote from: tag on June 11, 2012, 04:32:35 PM

try cranking with a plug out, check for a spark, crank sensor kills the spark........

Ok there is a spark, Also the plug was wet with fuel so I assume that it is getting fuel. This one has got me!!

tag · « **Reply #11 on:** June 11, 2012, 04:54:46 PM »

Hmmmm, me too, now lets have a think......... could be cam sensor but i think it controls injector sequence so it would fire,

prmacb · « **Reply #12 on:** June 11, 2012, 05:01:11 PM »

It doesnt make sence. Yesterday it was sweet as a nut. Been trying to think of anything strange. Fuel light came on on the way home last night (about 1 mile away) so I thought there might be a chance it needed fuel. I have since put 2 small jerry cans in but that has made no difference.

I have even spoken to the bloke I bought it from and he has never had any problems. I know he would probably say that but he seems genuine.

Only other thing is that its not parked on the level. Not on a hill but off level left to right if that makes sence. Nothing drastic but that should not make any differance should it?

Thanks for your help.

tag · « **Reply #13 on:** June 11, 2012, 05:10:47 PM »

if the plugs are wet and you have a spark it should fire even if its a back fire , we need more input!..............

Panic mechanic! · « **Reply #14 on:** June 11, 2012, 05:18:20 PM »

take all plugs out and clean them , sounds like you flooded it.when you tried to crank it did you pump he pedal at all?

prmacb · « **Reply #15 on:** June 11, 2012, 05:19:42 PM »

Quote from: Panic mechanic! on June 11, 2012, 05:18:20 PM

take all plugs out and clean them , sounds like you flooded it.when you tried to crank it did you pump he pedal at all?

Yes quite a lot... Will go and clean them now

Panic mechanic! · « **Reply #16 on:** June 11, 2012, 05:23:05 PM »

after you cleaned them and dryed them out , don't touch the pedal let it sort itself when you turn it over.

prmacb · « **Reply #17 on:** June 11, 2012, 05:35:06 PM »

Quote from: Panic mechanic! on June 11, 2012, 05:23:05 PM

after you cleaned them and dryed them out , don't touch the pedal let it sort itself when you turn it over.

No luck. Dried them all out. Left pedal alone and still nothing. How can I test the fuel preasure?

Panic mechanic! · « **Reply #18 on:** June 11, 2012, 05:40:06 PM »

there's a bleed valve but bear in mind it will/ should fire out when you press it, on the end of the fuel rail.

Oh and check all the fuses in the PDC ( fuses box) under the hood.

prmacb · « **Reply #19 on:** June 11, 2012, 06:02:14 PM »

Right

I have checked all the fuses. The ones under the bonnet anyhow and they are all fine. I cant see a bleed valve on the fuel rail. What would happen if i put some fuel in the throttle body. I know I used to do that on my Cab cars....

Paul

prmacb · « **Reply #20 on:** June 11, 2012, 06:15:19 PM »

Tag.

Do you have a red flashing light / LED to the left of your steering wheel? I do and I am starting to wonder if I have some sort of 2nd immobiliser or kill switch fitted somewhere that I might of hit when I was cleaning it last night! I also have some extra wires under the bonnet running power to somewhere. I assumed they were the radio (not standard) but I pulled the fuse and it still worked.

Time to pull the dash apart I think.

prmacb · « **Reply #21 on:** June 11, 2012, 06:31:21 PM »

Quote from: prmacb on June 11, 2012, 06:15:19 PM

Tag.

Do you have a red flashing light / LED to the left of your steering wheel? I do and I am starting to wonder if I have some sort of 2nd immobiliser or kill switch fitted somewhere that I might of hit when I was cleaning it last night! I also have some extra wires under the bonnet running power to somewhere. I assumed they were the radio (not standard) but I pulled the fuse and it still worked.

Time to pull the dash apart I think.

Well the extra wires were the remains of a old car phone. Still bemused by the extra LED.

tag · « **Reply #22 on:** June 11, 2012, 06:42:22 PM »

Sorry i was watching tv led yes if its flashing your immobiliser is still on!

prmacb · « **Reply #23 on:** June 11, 2012, 06:46:00 PM »

Quote from: tag on June 11, 2012, 06:42:22 PM

Sorry i was watching tv led yes if its flashing your immobiliser is still on!

It does go off. Clutching at straws that was all. Never mind back to the drawing board.

Thanks
Paul

tag · « **Reply #24 on:** June 11, 2012, 06:52:03 PM »

Just for the sake of it have a look in the dizzy clean and inspect check rotor arm make sure nothings broke, can't hurt,..........

you did put petrol in it didn't you?.............

Author Topic: Help 1997 2.5 petrol Cherokee Wont Start (Read 8390 times)

prmacb

jay140285

prmacb

tag

prmacb

tag

prmacb

tag

prmacb

tag

prmacb

tag

prmacb

tag

Panic mechanic!

prmacb

Panic mechanic!

prmacb

Panic mechanic!

prmacb

prmacb

prmacb

tag

prmacb

tag