XJ XJ6 / XJR6 ( X300 ) 1995-1997

My A/T failure warning light

Old 04-16-2019, 07:50 AM
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Lightbulb My A/T failure warning light

On my 1996 xj6 Jaguar A/T failure warning light is on looks like a horn with X over it now my car won't crank yesterday I took it to wash it with the sprayer and that's when I like it didn't want to start after 3 cranks... so I thought it was out of gas soon as a crank I took it to the gas station filled at half a tank and drove it and after a while I got back in the car after I turn the car off to crank it up it. Acted like like it didn't want to crank again and as I was driving it didn't want to go it only went over 30 miles per hour then it got to 40 miles per hour it started pudding.. now it want turn over.?
Old 04-16-2019, 09:30 AM
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Welcome to the forums Jagall73,

I've moved your question from an existing thread on an unrelated thread in S-Type forum to X300 forum as I see from your profile that you have a 1996 XJ6.

Please follow this link New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum to the New Member Area - Intro a MUST forum and post some information about yourself and your vehicle for all members to see. In return you'll get a proper welcome and some useful advice about posting to the forum.

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Old 04-16-2019, 01:26 PM
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My advice about washing engines is DON'T!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Customers would get angry when their new Jaguar would not start after washing the engine and demanded that it be repaired in NEW CAR WARRANTY.

We refused to warranty repair a 'self-inflicted' problem.

Jaguar issued a TSB on the hazards of washing certain areas.

Here is an excerpt.

A further concern is the use, especially in the engine compartment, of cleaning and detailing
chemical products, particularly those containing silicones.
Detailed investigations have indicated that the entry of silicones into electrical components
(particularly relays, connectors and components containing printed circuits) can cause
intermittent operation or complete failure.
Jaguar does NOT recommend under hood cleaning as a routine practice, nor the practice of
applying by spray, detailing products to the engine, engine bay, under hood pipes and hoses, and
other components to obtain a ‘showroom’ finish. If a high finish is desired, hand detailing is
Attached Files
File Type: pdf
600-02 Pressure Washing.pdf (26.8 KB, 6 views)
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Old 04-17-2019, 04:55 AM
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Originally Posted by motorcarman View Post
..... Jaguar issued a TSB on the hazards of washing certain areas. .....

Excellent advice with the relevant TSB attached. I've copied your post as a "sticky" with a new title:


The thread can easily be duplicated in other model forums as the question arises.

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Old 04-17-2019, 07:08 PM
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Park it in the sun with the hood open and hopefully it will dry out. That's your best and cheapest bet. Taking a power washer to the engine compartment of any car is asking for trouble. Just think of how many electrical connections and sensors there are. Whenever I clean engine compartments I spray onto a cloth and then wipe.

Last edited by AJ16er; 04-17-2019 at 08:20 PM.
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Old 04-20-2019, 10:22 AM
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Hi Jagall73,

Welcome to the Jaguar Forums! It's great to have you with us.

You can accelerate the drying process by disconnecting every electrical connector in the engine bay, flushing both halves with zero-residue electronic cleaner (CRC is a brand available at most auto parts stores), and allowing to dry or drying with compressed air before reconnecting. You could start with some of the critical engine management sensors like the camshaft position sensor, crankshaft position sensor, coolant temperature sensor, mass air flow sensor, throttle potentiometer and idle air control valve stepper motor. But you really don't want to risk leaving any of the connectors wet since this can promote corrosion or mineral deposits that won't do you any favors in the future.

It would also be prudent to disassemble and clean all the ground points, including both ends of the engine ground strap.

Be very careful when disconnecting and reconnecting electrical connectors since the plastic becomes brittle with age.


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