I have a 1993 XJ-40 which pulls hard to the left when driving in hard rain and brakes are applied. No problem when dry. Brakes overall seem in fine condition and sensors are clean at wheel (rears may be rusted in place, however). Car has 105,000 miles and is overall very good condition.

 

Hi mikelibera,

Welcome to the Jaguar Forums! It's great to have you with us. I have revised the title of your thread to reflect the nature of your malfunction so other members will know if they may have helpful suggestions or similar issues.

There are a lot of possible causes of pulling to one side while braking. Off the top of my head, here are a few:

1. Uneven tire inflation.

2. Right caliper is not applying the same pressure as the left, due to excessively worn pads, air in the caliper, corroded/seized piston or guide pins, or a pinched or internally-collapsed brake hose.

3. Play in a front wheel bearing causing a change in front end alignment when braking that is most noticeable on wet roads when the tires can slip.

4. Worn ball joints and/or deteriorated suspension bushes allowing improper movement that changes the front end geometry when braking, also most noticeable on wet roads.

5. Warped or oil-contaminated right brake rotor.

6. Master cylinder internal malfunction (I can't recall if the '93 has the right front/rear left calipers in one circuit and the front left/rear right in the other, but if so, it might be possible for a problem inside the MC to cause your symptoms - hopefully one of our brake experts will know).

Pulling brakes are a serious safety issue, so as soon as possible you need to inspect all brake and suspension components and replace any suspect parts. I would start with checking the tire inflation and the right front brake caliper. If you don't feel competent to do the inspection yourself, please seek professional assistance. I would also highly recommend that you do a complete brake fluid replacement (which Jaguar recommends every couple of years). The fluid absorbs moisture from the air (it's hygroscopic), and over time the collected moisture can wreak havoc on the moving parts in the system.

I'm sure I've forgotton some things but other members will come along and fill in the blanks.

Also, since we're a friendly group, please visit the New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum and post an introduction so we can learn something about you and your Jag and give you a proper welcome.

Cheers,

Don

 

Welcome Mike,lots of info and help here.Do a little research,these cars are wonderful when seen to.
+ 1 Don B
Pics?
Cheers,Jim and Cin.

 

This was an issue 'back-in-the-day' for the TEVES ABS. The valve block had a problem with severe pulling to one side under certain braking situations.

We replaced the ABS block if the car was in warranty. I have had luck disassembling the unit, cleaning and reassembly.

I don't have the early TSB (I probably have in paper form) but here is a procedure to disassemble the unit.

bob gauff