Pontiac Grand LeMans service by top-rated mechanics at the convenience of your home or office

Hello, thanks for writing in about your 2003 Pontiac Bonneville. Make sure all of the connections the the ignition module are tight. If one of the wires are loose you will have a rough running engine. I'm sure its something...

Hello - according to the interchange manuals, yes, the rear struts (https://www.yourmechanic.com/article/how-to-replace-struts-by-robert-tomashek) are interchangeable for these 2 GM vehicles. I would certainly compare them visually before disassembling your Grand Prix, just to be sure. If you need assistance, I recommend...

The noise could be exhaust related although there are other possibilities such as noisy bearings on engine accessories and pulleys. Exhaust systems can fail internally as baffles corrode over time. The poor engine running condition when cold could be caused...

The easy way to do it is to replace the hub assembly (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-wheel-hub-assembly) if you have a lot of miles on them since it will give you new studs and bearings. If you want to just replace the studs, you...