TIRED OF PROBLEMS?
How many nights have you laid awake in bed thinking of a problem car that you just can’t fix? Well, it may be the tires that are making you tired!
Problems with mismatched brands, wrong size, or low pressure can create a problem with a transmission. One example taken from the Automatic Transmission Rebuilders Association “Gears” magazine mentioned a problem with BMW automobiles equipped with the GM4L30E transmission or the ZF 4 or 5-speed automatics. The transmission won’t upshift to, or past, 4th gear after driving on the freeway. The transmission receives commands to only 3rd or 4th gear, with no stored codes. This particular vehicle had low mileage, but the right front tire had just been changed because it went flat. Being new, the spare had no mileage on it and the difference in tire size caused the computer to think the vehicle was in a high speed turn! The curve recognition software would down-shift the vehicle to a lower gear and would not allow the transmission to upshift past that gear. This is a safety feature that prevents the driver from losing control. The quick check for this problem is to swap the new tire to the rear.
The list of tire problems on 4-wheel drives is long. The most common issues are clunks, noises, and binding on turns. Different tire sizes, inflation, or mismatched brands are to blame. To check if tires are the issue, mark each tire at 12 o’clock with a marker. Roll the car straight for at least 10 tire revolutions. All 4 tires should remain within ¼ of each other.
We hope you get some rest with these tips. Contact any local LEONS TRANSMISSION SERVICE locations for more information.
Remember the time?
When replacing a radiator with an automatic transmission, most will have the cooler built into the radiator. There will be a loss of transmission fluid, some from spillage, and the empty transmission cooler cavity will need to be filled. Remember to add the appropriate oil and check the level.
THE FUNNY SIDE
The other day I was in the local auto part store. A lady came in and asked for a “seven ten” cap. We all looked at each other and said, “What’s a seven ten cap?” She said, “You know, it’s right on the engine. Mine got lost somehow and I need a new one.” “How big is it?” they ask. She makes a circle with her hands about 3 1/2 inches in diameter. “What does it do?” they asked. “I don’t know,” she said. “But it’s always been there!” Someone gave her a note pad and asked her to draw a picture of it. She makes a circle about 3 1/2 inches in diameter and in the center she writes “710”. The guys behind the counter are looking at it upside down as she writes it. They fall down behind the counter laughing in hysterics. One guy finally says, “I think you want an ‘OIL’ cap, lady.”