Hi
sub- jaguar 2000 s type- v8 engine

i drove home and stop the car, and i will not start the next day.

symptoms-
1. engine cranks, seems like no compression.
2. fuel rail px good.
3. removed plug on pax side bank and checked for compression, no compression.
4. ignition is ok.
5. removed front timing chain covers, all tensioners and chains intact and not jumped teeth.

6. Last day on the way home felt like engine was not developing sufficient power.

What are the remedies i can try to fix it or change the engine.Also after removing inlet manifold noted too much oil deposits .

Guys please help with input.

rgds
Mel

 

How did you determine fuel pressure is good Mel? What psi reading did you get at the fuel rail?

To determine compression all plugs need to be removed.

Personally sounds like a bad fuel pump to me.

 

Could be bore wash. The 4.0 is somewhat prone to it.

 

I agree.

But awaiting actual fuel pressure results.

Unless the actual pressure was captured via gauge/OBD2 then we are shooting in the dark at this point.

 

1.Fuel prsssure on the rail checked with px gauge 41 psi with ignition switch on no- 2 position.

2. i only removed one plug and did the compression check to ascertain if the secondary timing chain is busted.I have confirmed now all the chains and tensioners are in good shape( replaced them 2years ago)

3. removed all the plugs while cracking , keeping the finger on any plug hole you dont feel any compression on the fingers.

pls help

 

Using your finger practically impossible on a v8. Even so, is your finger a gauge.

You've taken the front cover of without checking for a spark ??
seems a strange way to diagnose a non start.

check for fuel pressure. Check injectors are firing, check for a spark, check for fault codes. Then get a compression gauge

then tell us your results.

if it happened exactly as you said it's not going to be bore wash.
unless it didn't happen as you explained.

post back your results

 

41 psi with key on is not good. Check voltage/fuses/relay to fuel pump. Listen for fuel pump priming when turning ignition switch on.

Check fuses to injectors as well. Again, sounds like a fuel delivery issue to me.

 

Ok Gurus here is the scoop again

1. Fuel delivery, all fuses checked satis. Pump runs as advertised,i will check and attack the fuel pressure in the mean time.what shud be the fuel px on the rail with ignition switch on 2 position.
2. injectors are ok along with ignition.
3. checked compression on all cylinders after cranking few times is almost zero.

rgds

 

Note- Before the no start issue there was no OBD codes if my wife is telling the truth or they never notice lights.ha!
i plugged the OBD post this issue no codes or CEL was on. FYI

 

A no-start should set P1582. Many tools don't know what it is, though.

 

Would like to follow this one.

 

Subscribed!!!

bob

 

JagV8 isn't p1582 immobiliser related ? I can't remember but remember it was a common code to see back in my youth.

no compression. Remove plugs. Few squirts of oil down each bore. Remove fuel pump relay. Spin engine over. Refit plugs. Refit pump relay. Remove all carpet obstructing throttle pedal. Now put foot flat to the floor and crank it over. It should start.

 

Does sound like bore wash, at least let's hope so.

P1582 is described in detail in code PDF/JTIS but not very interesting without OE tool.

 

1. I too suspected it was bore wash, and cranked the engine several times with gas pedal to metal to cut off fuel injectors, still no help.

2. suprisingly when you motor engine cranks with a funny sound like none of the valves are working.

3.I will try the oil squrt methord during the weekend and update the results.

Note- is this the ill effects of the Nikasil coating? I dont have the immobilizer code at the moment.What will that do in respect to engine starting?

rgds

 

This link might help.

Link JagRepair.com - Jaguar Repair Information Resource

 

P1582 is the DTC for EDR (Engine Data Recorder)
The info is stored as '37 frames' of info leading up to the EVENT, THE EVENT and 2 frames AFTER THE EVENT.

It can only be cleared with dealer level diagnostic equipment.

It is in the Setup and Config tab, Special Applications.

bob

 

If you think it's nikasil problems you've got a time machine. Keep it safe.
I was selling an xkr with an early engine and one guy didn't want to buy it because it was an early engine with nikasil. Do some research, racing teams used it. The fault wasn't in the manufacture, it was high sulphur content in the fuel, which no longer exists.

 

+1
doesn't sound anything to do with nikasil

 

1. tried squarting oil into all cylinders, still no help.
2. i am banking on replacing the engine
3. any help from US friends where i can source one?
4. can some one shed light upto which year they used nikasil and plastic guides and plastic tensioners on aj28.?

thanks