Alan in Alabama
New member
My 4Runner I bought last year has one noticeably different lug nut on each wheel and the little hubcap that is around the lug nuts is all scarred up. It looks like when the previous owner bought a set of tires the person changing the tires used the wrong size socket, probably too large, and ruined some of the lug nuts and replaced them with whatever used ones were on hand.
Worse yet... A previous car I owned, a Mercury Mountaineer, identical to a Ford Explorer, when I bought it the seller told me it had a new catalytic converter, which it had. Later I noticed the check engine light never came on. Bulb had been removed. I put in a bulb and of course the light came on. Checked the code and an oxygen sensor was bad. This particular sensor has to be replaced from above. I had to take out the front seats, remove console, cut the carpet, and access the oxygen sensor through a trapdoor in the floor. Replaced sensor, light went out, no codes, car ran great. Here's what happened, I'm sure. Tire store "mechanic" checked the code and then found out he was unable to easily replace the oxygen sensor, so he took out the check engine light bulb and sold the owner a new, unneeded catalytic converter. By the way, the same tire store had replaced the shocks and ripped out the front splash shields and threw them away
Ironically the best work by tire mounters I've experienced has been at Walmart! I've watched them and they always carefully torque the lug nuts with a torque wrench as the last step.
Worse yet... A previous car I owned, a Mercury Mountaineer, identical to a Ford Explorer, when I bought it the seller told me it had a new catalytic converter, which it had. Later I noticed the check engine light never came on. Bulb had been removed. I put in a bulb and of course the light came on. Checked the code and an oxygen sensor was bad. This particular sensor has to be replaced from above. I had to take out the front seats, remove console, cut the carpet, and access the oxygen sensor through a trapdoor in the floor. Replaced sensor, light went out, no codes, car ran great. Here's what happened, I'm sure. Tire store "mechanic" checked the code and then found out he was unable to easily replace the oxygen sensor, so he took out the check engine light bulb and sold the owner a new, unneeded catalytic converter. By the way, the same tire store had replaced the shocks and ripped out the front splash shields and threw them away
Ironically the best work by tire mounters I've experienced has been at Walmart! I've watched them and they always carefully torque the lug nuts with a torque wrench as the last step.