My 98 jaguar vanden plas had a little water in the tank as cap was lost and drain on top blocked. Rag over gas filler soaked and a little ran down the rag into the tank. I drained the tank through the rail. Fuel pump is working, and strong. When empty I put in a gal at a time, shook the trunk, and pumped it all out through rail three times, three single gallons, till empty. I put in new plugs but left cylinders open overnight. New NGK plugs gapped at .50 thous. Then put in another gallon easy and pumped out. Gas out of rail almost exact color as new gas in a clear glass. Put in 2 more fresh gallons. All water and anything else from years now out of fuel system. Put an ounce of gas in cylinders replaced plugs. Held pedal to floor turned key and won't start. A little, not big, pops from throttle body. Car ran a 100 feet before water hit so I know everything in engine is good. It just won't start again. At wits end. After pedal full down won't start, put pedal half down as usual way car starts and NOTHING!! What do I need to do. No money for help!!!
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Put tespoon of oil in eah cylinder. Still won't start. Pulled plugs agai and they are clean. No oil, or heavy gas smell on plugs. Put a little ether in each cylinder and plugs back in still won't start, not even popps. I am lost.

 

Welcome to the forum beverlydrive520,

Good to have you here with us at Jaguar forums.

Holding the throttle fully down prevents the fuel pumping but you already probably have 'cylinder wash' from excess fuel in the cylinder bores. I've copied your post to the X308 tech section. Members with the same model will be able to advise on the non-start. Here's the link to it:

https://www.jaguarforums.com/forum/x...-start-100720/

Follow this link XJ ( X308 ) XJ8 / XJR - Jaguar Forums - Jaguar Enthusiasts Forum to the main X308 section for help, advice and information. The 'HOW TO' thread at the top is a good place to start for info 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.

You can also visit the US Lower Atlantic Region section by following this link https://www.jaguarforums.com/forum/lower-atlantic-nc-sc-fl-ga-66/ to find other members in your region.

Enjoy the forum.

Graham

 

Could be cylinder wash. I've had it and I put a SMALL amount (less than an ounce) of oil down the plug holes.
BTW, you should not touch the throttle during start under normal conditions. After doing the oil trick though, play with it around half throttle and she should start. Let us now how it goes.

 

welcome to the forum

 

Welcome to the forum beverlydrive520,

Good to have you with us.
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.

 

__________________________________________________ __________
Added to my thread about after adding oil.

 

98 Jag Vanden Plas XJ8 Engine. Car has 130,000 miles.

 

Thank you for the help. The new unexpected problem is there is no spark to the plugs. I pulled #1 and checked by turning over engine. I checked the engine fuse box under the hood. All fuses are good. I am surprised as the car was running till the gas hit the engine. The gas is now immaculate and pumping well with pressure. The engine ran great till that point. I pumped the tank dry 3 times before getting quality gas. Is there something that would shut the ignition system down if no fuel was getting into the system? If not what process to check going backwards from the plugs Thank you. Michael

 

Please do NOT multiple post the same question in different threads. You already have a thread running on this issue in X308 section. I've replied in that thread:

https://www.jaguarforums.com/forum/x...20/#post798775

Graham

 

Welcome to the forum

 

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