2007 Chevrolet Impala • 6 cylinder FWD Automatic • 108,226 miles
Turning left is stiff. I had a new boot installed in the upper strut of front driver side but is still like that. Power steering fluid is fine and have no trouble making a right turn.
July 22, 2011.
July 22, 2011.
The cause of the problem is grooves worn into the soft aluminum housing that lets the pressurized power steering fluid bypass the power piston so it doesn't create the force to help you steer. The fix is to install a high-quality aftermarket replacement that has been modified with a stainless steel insert to prevent that from happening again. GM's cheap ineffective fix in the '80s was to install a new spool valve with the sealing rings rather than the proper repair of replacing the entire rack assembly. The goal of the patch job was to last just long enough to get the car out of the 50,000 mile warranty, then the owners had to foot the much more expensive repair bill to have it fixed right. Just one of the many reasons GM is not a customer-friendly company. They have a whole bunch of ways to separate you from your money. Of course, by now you already know that.
There were a lot of Chrysler products that the rack and pinion could be replaced in less than a half hour, but there was at least one model that took over three hours. (I was the suspension and alignment specialist at the dealership). I don't know how long it will take to replace the assembly on your car, but from watching former students work on Pontiac Grand Ams, it could be a half day job. Your assembly is designed more like the common Chrysler units, not like those miserable Pontiac ones, so my guess is it won't be a real big job to replace it.
Once it's replaced, the car will need to be aligned. There may or may not be other adjustments available, and if there are, they might not need to be adjusted, but "toe", the direction each wheel is steering must be readjusted because those adjustments are incorporated into the rack and pinion assembly. That part of the alignment is rather easy to set precisely very quickly. It could take less than a half hour for the alignment but most shops have a set charge regardless how quickly they can get it done or whether it takes a long time to get it right.
If you're given the choice, opt for a replacement rack assembly with a lifetime warranty. That is somewhat common but you might pay extra for it. That warranty might not cover the labor and alignment, but even if it just covers the part, it's worth the small extra cost.
Please do not do business with this spammer. People come to this site for help with car problems, not to go clothes shopping. Apparently this idiot doesn't know how to reach his target audience. A lot of people are getting pretty angry. Quite the unusual way to attract loyal customers.
Jul 23, 2011.
Jul 23, 2011.
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