zzrhersc
#2
Join Date: Jan 2014
Location: Delaneys Creek,Qld. Australia
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#3
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Recent Action: Have added the following new parts in the last week: fuel pump and strainer sacks, fuel filter, spark plugs and leads, distributor cap and rotor, ignition box under coil, and air flow meter. The fuel injectors have also been cleaned as well as all electrical connectors in the engine bay. The crank angle sensor and catalytic converter has also been cleaned and inspected. All engine hoses have been checked for vacuum etc.
Problem: While the addition of the above is costly and good maintenance, it has not solved the following problem. While the car will run at idle, as soon as the accelerator is pushed down, the motor coughs and will not increase its revs either in or out of auto gears. If the throttle is very very gradually pressed, the engine will rev up to 2,500 rpm and then coughs and returns to idle revs at 700rpm.
Any Suggestions from Forum Members: My Jag mechanic is stumped. Any members had this problem and what solutions might you have had.
HELP!
Rob
Problem: While the addition of the above is costly and good maintenance, it has not solved the following problem. While the car will run at idle, as soon as the accelerator is pushed down, the motor coughs and will not increase its revs either in or out of auto gears. If the throttle is very very gradually pressed, the engine will rev up to 2,500 rpm and then coughs and returns to idle revs at 700rpm.
Any Suggestions from Forum Members: My Jag mechanic is stumped. Any members had this problem and what solutions might you have had.
HELP!
Rob
#4
Join Date: Jan 2014
Location: Delaneys Creek,Qld. Australia
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Hi Rob, if you repost your question in the XJ40 forum the members there will be able to help you out. Click on the link below.
https://www.jaguarforums.com/forum/xj40-xj81-25/
There are some threads in the Qld Forum that will point you to some local Independant Jaguar workshops recommended by SEQ members. Link below.
https://www.jaguarforums.com/forum/a...queensland-92/
https://www.jaguarforums.com/forum/xj40-xj81-25/
There are some threads in the Qld Forum that will point you to some local Independant Jaguar workshops recommended by SEQ members. Link below.
https://www.jaguarforums.com/forum/a...queensland-92/
Last edited by o1xjr; 11-18-2017 at 03:36 AM.
#5
#6
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#7
Join Date: Oct 2007
Location: PHX some of the time
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Welcome to Jaguar Forums zzrhersc,
Good to have you with us.
I see that you have found your way to the tech section.
Enjoy the forum.
If you haven't done so already you should add your car details to your signature to help others to help you.
If you need help with getting around and using the forum follow this link for some help Forum Help
Good to have you with us.
I see that you have found your way to the tech section.
Enjoy the forum.
If you haven't done so already you should add your car details to your signature to help others to help you.
If you need help with getting around and using the forum follow this link for some help Forum Help
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#9
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zzrhersc (11-18-2017)
#10
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Welcome to the Forums Rob! I'll add you to our Queensland Roll over here and keep you posted on any gatherings or shin digs if your keen:
https://www.jaguarforums.com/forum/a...-119698/page8/
I'm sure with the Guru's on the forum you'll get your XJ sorted in no time as well
https://www.jaguarforums.com/forum/a...-119698/page8/
I'm sure with the Guru's on the forum you'll get your XJ sorted in no time as well
#11
#12
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Welcome to the forum Rob,
Good to have you with us at Jaguar forums.
I've can see you've already found your way to the XJ40 forum.The 'HOW TO' thread at the top of XJ40 forum is a good place to start for information on regular issues.
Please remember to add vehicle details to your Signature to help others to give relevant advice. Go to the User CP button on the left of the top menu bar, then Settings & Options under Your Control Panel. Select Edit Signature and enter the details.
Enjoy the forums.
Graham
Good to have you with us at Jaguar forums.
I've can see you've already found your way to the XJ40 forum.The 'HOW TO' thread at the top of XJ40 forum is a good place to start for information on regular issues.
Please remember to add vehicle details to your Signature to help others to give relevant advice. Go to the User CP button on the left of the top menu bar, then Settings & Options under Your Control Panel. Select Edit Signature and enter the details.
Enjoy the forums.
Graham
Last edited by GGG; 11-20-2017 at 02:44 AM.
#13
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Many Thanks for all the help and advice I have been given previously.
I sought the diagnostic advice and professional help of a Jaguar Specialist here in Brisbane, Australia.
It turned out that over the years since the car was built in 1993, there has been interaction between the fuel vapours in the air above the fuel level and the inside roof of the tank. This caused contamination on the roof of the tank which was falling into the fuel leading to a blocked fuel pump, fuel pump sock and filter resulting in 15psi at the injectors.
So the tank had to be removed, chemically cleaned, repainted inside and out and reinstalled. A new fuel pump was also installed.
They have done a terrific repair job, moderately priced too, and my Jag is now running like the 'cat' is was designed to be now with 40+psi at the injectors.
So it should last for another 20+ years or so. I look forward to some 'Happy Queensland Motoring'!
Kindest regards
Rob
I sought the diagnostic advice and professional help of a Jaguar Specialist here in Brisbane, Australia.
It turned out that over the years since the car was built in 1993, there has been interaction between the fuel vapours in the air above the fuel level and the inside roof of the tank. This caused contamination on the roof of the tank which was falling into the fuel leading to a blocked fuel pump, fuel pump sock and filter resulting in 15psi at the injectors.
So the tank had to be removed, chemically cleaned, repainted inside and out and reinstalled. A new fuel pump was also installed.
They have done a terrific repair job, moderately priced too, and my Jag is now running like the 'cat' is was designed to be now with 40+psi at the injectors.
So it should last for another 20+ years or so. I look forward to some 'Happy Queensland Motoring'!
Kindest regards
Rob
Last edited by zzrhersc; 02-06-2018 at 02:42 PM.
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GGG (02-06-2018)
#15