12-03-2017, 11:13 AM
(12-03-2017, 08:20 AM)boater sam Wrote: Most so called experts in my experience couldn't track a unicycle.
Lol
I had something similar with my Focus. First I noticed what sounded like a duff bearing coming from the back, and at the time, Honest John mentioned possible problems with rear wheel bearings. As the car was approaching its 3rd birthday (3 year warranty at the time), I tried flagging it with the garage (a very good one, it has to be said), but they weren't sure they could hear anything, and couldn't find any play, etc, with the bearing...
Shortly afterwards, another garage did its first MOT (I was between Norfolk and Worcestershire at that point), and found uneven wear on the tyre. This was strange - it was wear that varied with rotation around the tyre. So you could look from behind the car and it would look absolutely fine, but push the car forward a few inches to reveal a new bit of tyre and the inside inch had no tread at all!
No-one could come up with an explanation for that. No professionals, nor none of the enthusiasts. The internet was no help either. All we could do was put it down to a faulty tyre. A replacement cured it, and I wasn't too unhappy because the original Firestones were really noisy compared to the Pirelli P6000s that I'd already put on the front.
But after a few months, that same corner started to get noisy again. I couldn't detect a wear pattern yet, but by this time, I'd bought myself an infra-red thermometer, and could see that the same inside edge of the tyre was some 15-20 degrees warmer than the rest of the tyre after a drive. The other tyres were pretty constant across their width.
So armed with that information I rushed off to the local Ford dealer, who dismissed me as some sort of eccentric nutter. Despite explaining everything clearly, they just didn't understand the point I was trying to make - or didn't have the necessary equipment and expertise to check it out.
A local tyre specialist did the honours, and as expected, found that a substantial adjustment was needed on that corner (I didn't give them much detail when arriving - I wanted to see what they found with no prompting. Top marks!). Don't ask for more detail - this was more than 10 years ago. Suffice to say, the Focus has a complicated rear suspension setup for its time, and there are adjustments. I still have the car, and it's been fine every since. The handling is still up there with the modern cars.
So, you might need to persevere until you find a place that understands what they're doing. Based on my experience, that wouldn't be a main dealer, and it certainly wouldn't be any of the fast-fit chains. But a local specialist did the trick for me.
Good luck!
PS: I wouldn't worry about 5PSI.
