Engine not starting after sitting for a few months?

Tiny
MYFATHERSSON
  • MEMBER
  • 2016 JAGUAR XE
  • 2.0L
  • 4 CYL
  • TURBO
  • 2WD
  • MANUAL
  • 60,000 MILES
Hi,

My son's car cut out when he was on the way home a few months ago. After a bit of fault finding and stripping the car down, I found a snapped lower timing chain.

I replaced this and put it back together, but it cranked, almost fired but then seemed to stall.

After checking the pressures on the cylinders, they were 360, 300, 250, 210 (from back of engine to front). I stripped the engine down and did a leak test on the valves and found that all cylinders were leaking from various valves. I spent a day re-grinding them to stop them leaking. They are now 250, 295, 290, 285 (back to front).

I put it all back together again but still only get the crank and almost started. I tried another camshaft sensor as this message did pop up on my diagnostic tester but only once after re-assembling, it did not pop up subsequently and I was clutching at straws.

Am I looking at a sensor issue? Or do you think this is still a mechanical problem? Any help would be most appreciated. The engine is not running?

Many thanks

Kevin
Monday, August 19th, 2024 AT 5:27 AM

31 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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Is this a diesel or gas engine? Also have you run the codes?

Here is a guide to help:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Will the engine run on starting fluid? Please go over this guide and get back to us.

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Monday, August 19th, 2024 AT 10:10 AM
Tiny
MYFATHERSSON
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Thanks for responding Ken. It is a diesel.

The code reader I have does not show any codes other than a P0342 error, which only happened once after reassembling and trying to start for the first time. There have been no codes subsequently although I have just purchased some computer software that should be more in depth and hopefully it will give me something.

I have tried starting it with carb cleaner but it makes no difference.
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Monday, August 19th, 2024 AT 11:07 AM
Tiny
KEN L
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Trouble code (DTC) P0342, or "Camshaft Position Sensor 'A' Circuit Low", So it looks like the camshaft timing may be off, I don't have information on the diesel so can I ask how you timing the engine crankshaft, camshaft and fuel pump? All of these compression readings are low.

Diesel engine should be around 350 to 450 psi (24 to 31 bar) per cylinder.

Telling us the timing is off.
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Tuesday, August 20th, 2024 AT 8:51 AM
Tiny
MYFATHERSSON
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Hi Ken,

I haven't done anything with timing per se. I got all the chain timing marks in the correct positions according to the service manual. I presume one of the sprockets that the chain goes around is the fuel pump.

It uses injectors, does the timing for the fuel not come from the ECU?
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Tuesday, August 20th, 2024 AT 9:06 AM
Tiny
KEN L
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I am not sure, I don't have information on this engine, I do know what the timing of the fuel pump and camshafts need to be correct and with the compression that low it seems off to me.
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Wednesday, August 21st, 2024 AT 8:43 AM
Tiny
MYFATHERSSON
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Thanks Ken, I have some more sophisticated diagnostic software now so I will start by looking at the timing.

Many thanks
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Wednesday, August 21st, 2024 AT 8:46 AM
Tiny
KEN L
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Sounds good, let me know how it goes.
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Wednesday, August 21st, 2024 AT 9:42 AM
Tiny
MYFATHERSSON
  • MEMBER
  • 16 POSTS
Hi Ken,

So, I have run the software, and it has come up with some stored codes, P060A and P0342.

I tried removing these but they didn't disappear, so I checked with the software provider, and he said that if they don't go, it is because the issue is immediately detected again.

As I haven't attempted to start the car, am I correct in assuming that it isn't the sensor detecting an issue, it must be that the PCM has either detected a problem with the sensor or the wiring? I have replaced the sensor so unless I have two faulty sensors, would that make it the wiring? Is there something else to check?

Many thanks,

Kevin
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Wednesday, August 28th, 2024 AT 12:02 AM
Tiny
KEN L
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Did you recheck the engine crankshaft to camshaft timing?

"Diesel engine should be around 350 to 450 psi (24 to 31 bar) per cylinder."

yours is "They are now 250, 295, 290, 285 (back to front)."
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Wednesday, August 28th, 2024 AT 8:31 AM
Tiny
MYFATHERSSON
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Hi Ken,

How would I recheck the crankshaft to camshaft timing? Would that need to be done using software?

Many thanks.
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Wednesday, August 28th, 2024 AT 8:39 AM
Tiny
KEN L
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Each scanner is different, you would need to follow the prompts to see if the scanner is capable of such a task.
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Wednesday, August 28th, 2024 AT 9:06 AM
Tiny
MYFATHERSSON
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I will give it a go and let you know.
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Wednesday, August 28th, 2024 AT 9:16 AM
Tiny
KEN L
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Sounds good.
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Wednesday, August 28th, 2024 AT 9:19 AM
Tiny
MYFATHERSSON
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Hi Ken,

I had an email from the software provider telling me that it could be the software not being able to remove the codes, so he gave me a refund. I instead bought a diagnostic all in one tester and have run that.

It comes up with an error on the seat belt pre tensioner, not something I would thing will stop the car starting. It also says that the glow plug circuits are open, which is because they are not plugged in at the moment as I was checking the pressure.

However, there was one other code that came up which is quite interesting.
P064F-00
State Permanent
Unauthorized software/calibration detected

The only thing I have tried doing with any of the diagnostic devices/software is remove codes. What would be the next thing to look for to see why this has popped up?

Many thanks
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Thursday, September 5th, 2024 AT 11:07 AM
Tiny
KEN L
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The P064F-00 trouble code refers to an issue with the engine control module (ECM) related to an internal control module sensor reference voltage "D" performance. So, this can be because of the wiring that is disconnected. It probably is not starting because the compression is low, can you try starting fluid for diesels to see if anything changes?
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Friday, September 6th, 2024 AT 11:12 AM
Tiny
MYFATHERSSON
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Hi Ken,

So, I tried using some starting fluid and it did fire up. Once I stopped spraying, it managed to continue for about 4-5 seconds and then stalled.
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Saturday, September 7th, 2024 AT 12:09 PM
Tiny
KEN L
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That is a good sign, so fuel seems to be the problem, the car has diesel in it correct? Sorry I had to ask you would be surprised. Let's check for power at fuse #28 in the rear fuse panel which is for the fuel pump, also swap out the fuel pump relay, and one more thing, unplug the MAF sensor and crank it over, when this sensor goes bad it will tell the PCM not to engage the fuel pump.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Here is the location of the MAF sensor. Check out the images (below). Please let us know what happens.
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Sunday, September 8th, 2024 AT 10:59 AM
Tiny
MYFATHERSSON
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Hi Ken,

I know fuel is getting as far as the fuel filter because when I reassembled, one of the pipes wasn't quite connected properly so when the system pressurized, it popped off and squirted diesel everywhere.

It has, however, made me think of something else that may cause the issue, which is that the car has been sitting on the road for a couple of months and then in my garage since February. Could it possibly be that the diesel fuel has gone bad and needs replacing?

Many thanks.
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Monday, September 9th, 2024 AT 1:50 AM
Tiny
KEN L
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Not in a couple of months the fuel should be okay. But if someone contaminated the fuel that is another story. Can you hear the fuel pump relay click on when you turn the key on but don't crank the engine over?
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Monday, September 9th, 2024 AT 8:20 AM
Tiny
MYFATHERSSON
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Hi Ken,

Yes, I can hear the pump whining. When you say a couple of months, it has been about 7.

I will double check tonight, to make sure the fuel is getting as far as the injectors and report back.

Many thanks
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Monday, September 9th, 2024 AT 8:26 AM

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