Technical 1.9 JTD suddenly dies (crank sensor?)

[T14086]

Now i trace the wire to find the connector which runs 6-8 inches up towards the top on the right, now i say to myself that looks f&%king awkward to get to and i was right
an hour later i managed to get the connector out of its fastening.

The problem was that as i have fitted a strutbrace so there is no room to get a hand let alone an arm down the back of the engine from the top, everything had to be done from underneath.
The fastening is obviously designed to be opened from the top as it has one of those annoying little catches on that they use througout the engine bay to hold pipes in place.
they are easy to open with two hands and a small screwdriver but have you ever tried to undo one with one hand while laying in your back only able to get half an arm up into the recess nd you can't see what your doing because of the dark, even with bonnet open and a torch

It was quite funny now when i think back, LOL

I did manage to undo the b@st@rd thing and then the connector was easy as you can drop it down to get two hands on.

Cut the CPS wire & pull it through either end,when fitting new CPS use cable ties to keep it from touching anything hot etc....

Think thats bad try it on a alfa 156....3 of those clips (you literally cant see one of them) & need to drop rear engine mount

Good luck

 

[Keith-130mph]

JTD - losing power suddenly (crank sensor?)

I hope someone will help with this, I know loads of people have probably already posted about this but my Stilo JTD 115 keeps losing power and stalling, even at high speed. The power just goes from under your foot and when you dip the clutch the car stalls even when you moving. This has happened in every gear and it seems the FIAT dealers diognostic thing can't find the problem, I'm going to attempt to clean the inlet control valve in the morning to see if that helps.
Any help or ideas would be appreciated

 

[baggieboy]

re: JTD - losing power suddenly (crank sensor?)

Keith,
Had a similar problem a week or so ago - car just cut out, waited 20 mins , started again and would go for @5 miles then cut out again. When it happened the next day, I called the RAC out. After waiting 2 hrs, they arrived and said no rescue organisation can access the FIAT computer system (DIESEL) - since 2002 all petrol models are regulated so onboard computers are accessible by anyone, but the rile does not apply to Diesels !!
So he offered to tow me to a main dealer which I declined as they are useless, so took me to my mechanics. Got a mobile FIAT engr out next day, connected and got error - Speed Sensor failure (more commonly known as the Crank Sensor or RPM sensor, and I think sometimes the MAF sensor).

Ordered one (cost £23) and was replaced for total price of £50 - picked it up last Wednesday and have done 300 miles since without any problems.
Hope this helps,
Kev

 

[Keith-130mph]

re: JTD - losing power suddenly (crank sensor?)

thanks for all the input guys I have been told by q few people to try getting the crank sensor looked at. I have a friend who is an Alfa Romeo mechanic who knows the JTD engine well as it an Alfa lump. I'll get it changed and let you know how it works.
Thanks again guys

 

[Stilo170]

Stilo random power loss problem

Was just wondering if anyone cud help me with a problem im having with my stilo 1.9 jtd dtnamic 115. the car has bin remapped and recently got rollin roaded ad 169.5 bhp but over the last wile there has bin this rele annoying intermittent problem. sometimes im just driving along and all of a sudden the car will lose all power for a second or two and wont respond to increased acceleration and then just go back to normal straight after. its wierd and very annoying. have read a couple of posts and my only ideas are the crank sensor or the MAF mass air flow meter. any help would be much appreciated. also ive heard that when you replace the maf, if it is that that is at fault then the car will get some perfdormance gains due to the faulty maf restricting the power but to be honest im not sure bout that one. HELP!!!!!!!!!!

 

[john55]

Re: Stilo random power loss problem

Faulty brake light switch maybe. Clean EGR. Check Turbo control valve.

 

[Deckchair5]

Re: Stilo random power loss problem

If you're going along at a steady speed and you suddenly lose all power, just like turning the ignition off for a second and then it comes back in as normal as if you've just bump started it then that sounds very crank sensor

What is MORE crank sensor is a total inability to start up when engine is warmed up but then leave it for a while and it's as if nothing has happened- until the next time

It seems that at a certain mileage the crank sensor on the diesels becomes high on the list of suspects

 

[Stilo170]

Re: Stilo random power loss problem

If you're going along at a steady speed and you suddenly lose all power, just like turning the ignition off for a second and then it comes back in as normal as if you've just bump started it then that sounds very crank sensor

What is MORE crank sensor is a total inability to start up when engine is warmed up but then leave it for a while and it's as if nothing has happened- until the next time

It seems that at a certain mileage the crank sensor on the diesels becomes high on the list of suspects

oryt well the car has no problems with starting up while warm and has always started first turn of the key. but the symptoms you described there are the exact same as i have been experiencing. the car has only got 47,000 on it, would the crank sensor be likely to go in that kind of period? is there any chance of it being the maf with these symptoms?

 

[minimad99]

Re: Stilo random power loss problem

When mine went, it would start everytime on the button cold or hot. It was only when the symptoms got worse and the bad judder turned into complete cutting out/stalling that i started to get the non start but only after the cut out.

If you'd been on a run, stopped then continued a short while later it would be fine, even if you juyst nipped into the shops.

If your symptoms definately match those described by Decks and in the above thread, i'd go with crank sensor, £23 ish from a dealer and you can do it youself, depending on your skill level obviously, LOL
Hope this helps.

 

[minimad99]

Re: Stilo random power loss problem

On a side note, have you got proof of that bhp on a roling road?
Is it at wheels or flywheel?
If at flywheel that is right at the max for a JTD, the clutch cannot handle much over 160bhp from what i've read on here. Have you had any clutch slip on 4th/5th gear?
I'm running 153bhp which does me fine although mines done 103000 miles, LOL

 

[Stilo170]

Re: Stilo random power loss problem

Cheers for the post, hopefully dat will be the cause and i can get it sorted asap. it is gradually getting worse. yea i have the printout ill do my best to get it up. im nt sure where the bhp figures were measured from, i jus left the car out to my local east coast customs and they did the rr and gave me the printout sheet. i only bought the car recently with the work already done. ive no idea what the max is for the jtd but the car also has a hybrid garrett turbo instead of the standard one. 233lb/ft of torque as well. na no clutch slip so far and im constantly doin long journeys down the motorway to uni in 5th gear like so im hopn it holds up lol

 

[LarryB]

Yes I'd go initially for the connector of the crank sensor (item 1) and give it a clean up with some contact cleaner

View attachment 31164
But after that then it would more likely be the sensor itself as it's an internal phonic wheel pick up off the flywheel with the JTD (similar to the ABS pickup)

unlike the mag pick up straight off the crank pulley of the petrol versions (apart from Abarth)
View attachment 31163

Looks good - pardon me for being thick, but which side of the engine does the JTD 115 drawing refer to? If it's only a clip and a bolt to shift to replace the crank sensor, I can do it at home.

 

[T14086]

You need to get it from underneath Larry as its at the back of the engine (as per Attachment 31164)

 

[petter]

Problem with JTD - engine stops

Error message "broken connection" and the engine stops. Teh fisrst time it happend it started again and operated normally during two month. Now the same thing occured again. No broken fuse, cabling to batteri not loose, batteri ok and starter operates but engine will not start. What is the problem? Where to look?

petter

 

[Deckchair5]

re: Problem with JTD - engine stops

What engine is it? As each engine is very different
Have you read any stored fault codes?
Have any dashboard warning lights displaying when it won't start? Immobiliser warning light go off?

Tell us a lot more for better answers

 

[petter]

re: Problem with JTD - engine stops

It´s a Stilo 1.9 JTD (115 bhp), 2002 mod. "Loosing connection" appears on the dashboard display, and the engines stops. I wait for 20 minutes, and the cars starts again.

 

[paulscatt]

1.9 JTD Multiwagon engine cutting out

Driving home from work yesterday my Stilo 1.9JTD Multiwagon engine cut out whilst driving, giving a warning on the dash ''Loose Connection'' and the spanner symbol. It would not restart but the starter motor turned over and my dash ,radio etc were as normal so I called out the AA. They arrived 45 mins later. I explained the problem and the AA man tried the ignition and the car started no problem making me look a bit of a prat . He followed me the rest of my journey home without any further problem. I have used the car today on a motorway round trip of 100 mile without incident. However this evening the same thing happened ie engine dead in mid journey same warning on dash . I left the car for 10 mins and it re-started and i got home .

Wondered if anybody could help me pinpoint the possible cause before i make the dreaded trip to my friendly Fiat Dealer.

 

[a1ant]

Re: 1.9 JTD Multiwagon engine cutting out

Hi mate,

I would agree with crank sensor. If you want to replace it yourself there is a GUIDE here with photos. Dead easy job.

Alan

 

[paulscatt]

Re: 1.9 JTD Multiwagon engine cutting out

Thanks for all your help. U guys sure are quick off the mark

 

[Most Easterly Pandas]

Re: 1.9 JTD Multiwagon engine cutting out

I to would agree that it sounds like the crank possition sensor, after the problems my friend had when it recently went on her Fiat, and there was the RAC diagnosis being a coil pack