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The mkiv Supra Owners Club

Squiffy handling


Ian C

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Well, nothing too bad but I get stressed if things aren't 100%.

 

Under braking the car is nervous - want's to pull left and right. The braking performance seems less than optimal at times as well.

 

The car also feels like it's tramlining more than usual as well, maybe a bit of wandering.

 

Now, the factors that may influence this are:

I have been running, inadvertantly, 18psi or so in the front right tyre for a few hundred miles. The valve cap is dodgy, the rubber seal has come adrift and can press on the valve stem a bit. I'll be replacing that on Saturday.

 

I've pumped this tyre back up, and the handling is still iffy. I know from experience that a change in pressure over extended mileage can wear the tyre into a new road profile. When pumped back up, it can feel exactly as mine does now, but after a few hundred miles of feeling nervous and wandering they seem to recover the normal handling.

 

I intend on getting the tracking checked out on Saturday as well.

 

The car doesn't do too many miles, especially with the troubles I've been having, so it spends a lot of time standing in the garage. This may have implications.

 

The brake pedal also seems to have a too-long travel and be lacking feel. Time for a brake fluid change, perhaps?

 

Anything else I should check?

 

Basically, I stress when there is something out of true with the car and I hate not being able to get on and diagnose/sort it right away (I'm at work - grrr), so this post is an effort to pacify my daemons :D

 

-Ian

 

(edited to tidy up an apallingly ambiguous paragraph)

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It could be a warpped disc, mine is a j-spec and just been diagnosed with this. I had the same symptoms, as you have described.

The garage is skimming the disc's for me as we speak, and has assured me it will correct the problem.

 

rgds,

Marcus

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