12-11-2008, 01:26 PM
Join Date: Nov 2004
Clicks, Leaks and Flickers
BAD wheel bearings on Audis, fuel tank problems on Jaguars and various troubles with General Motors crossovers and S.U.V.ís are among the issues covered in recent technical service bulletins.
The bulletins, or T.S.B.ís, from alldatapro.com offer automakersí insights into recurring problems with various models. The bulletins are not recalls; they are information provided by manufacturers to mechanics and dealersí service departments. Unless otherwise noted, automakers do not pay for these repairs beyond normal warranty coverage.
Alldata.com sells a version of these bulletins to consumers.
Here are some recent examples:
Some 2003 CL headlights may flicker or stop working. In T.S.B. 08-044 issued on Oct. 9, the company said the headlight inverter ó part of the circuit that powers the headlight ó needed to be replaced. For vehicles that are out of warranty, Acura may offer payment assistance for the repair at the district managerís discretion.
Also, some 2007 MDXs have been delivered with a wheel-nut wrench of poor quality. In T.S.B. 06-054 issued on Sept. 17, Acura said the socket portion might easily round off. Replacement wrenches should arrive by mail.
Owners of A8s may hear clicking noises from the front wheels when making turns. In T.S.B. 40 08 04 issued on Sept. 11, Audi noted that 2003-6 models might have surface rust between the wheel bearings and bearing carriers. Replacing the bearings and associated parts should stop the noise.
Also, some Q7s may leak transmission fluid. In T.S.B. 38 08 06 issued on Sept. 23, the company said leaks might occur from the transmission lines that run to the cooler, near the oil temperature regulator. The regulator and related seals should be replaced.
A clicking noise coming from the front wheels on turns may be heard on some X5s. In T.S.B. 31 01 08 issued on Oct. 1, BMW said the front outer CV joint boot might be torn. The joint and the boot should be replaced.
Some new crossover vehicles may have leaky sunroofs. In T.S.B. 08207A issued on Sept. 15, the company said that 2007-8 GMC Acadias, Saturn Outlooks and 2008 Buick Enclaves might not properly drain water around the sunroof. Installing drain tube extensions should dry things out.
Also, a few of the companyís 2009 S.U.V.ís with in-line 6-cylinder engines may have a serous problem. In T.S.B. 08328 issued on Sept. 23, the company said some Chevy TrailBlazers and GMC Envoys might have a cylinder bore machined too deeply, which could lead to a cracked engine block. About 800 vehicles may be involved, and the engine must be replaced.
In addition, some S.U.V.ís may have corrosion in the fuel-tank modular reservoir assembly, which houses the fuel pump. This could lead to fuel spraying from the vehicle. In T.S.B. 07076 issued on Sept. 30, the company said the parts in 2002-4 Chevy TrailBlazers, GMC Envoys and Oldsmobile Bravadas and 2004 Buick Rainiers and GMC Envoy X.U.V.ís would be warranted for 10 years or 120,000 miles, up from the original 3-year/36,000-mile coverage. Customers who already paid for this repair can be reimbursed.
HONDA Some 2007 CR-Vs may have abnormal wear in the power steering pump. In T.S.B. 08-070 issued on Sept. 9, Honda said the power steering pump might seize in these vehicles, causing hard steering. The pump should be replaced.
Owners of some Mazda 3s and Mazda 5s may notice a coolant leak by the water outlet. In T.S.B. 01-047-08 issued on Oct. 10, Mazda said the problem was from a poorly designed water-outlet gasket on some 2003-8 3s and 2008 5s. The gasket should be replaced.
Also, some CX-7 crossovers are getting insects in the taillights. In T.S.B. 09-036-08 issued on Oct. 17, Mazda said the bugs were entering through a hole in the taillight housing. Either a gasket can be put in the current assembly to keep the bugs out or a new taillight assembly should be installed.
Some Prius owners may notice a knock from the front of the vehicle, especially when driving on rough roads. In T.S.B 0300-08 issued on Sept. 18, Toyota said an engine mount attached to the transaxle was the culprit. Adding engine mount insulators should quiet things down.
Also, some Tacoma pickup owners may notice a rough ride when their 2005-8 Double Cab trucks are fully loaded. In T.S.B. 0305-08 issued on Sept. 30, the company said that an improved set of rear spring assemblies and front and rear shocks would cure the problem.