Leon's Transmissions CA 90638

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Frank Wright

I went here cause it was recommended by a friend even though they were not certified through AAA. At first sounded good Ron said he would have an answer for me later that day as to what needs to be done. my phone service got turned off that day, and thinking he might have called I took the bus there the next morning only to find out they haven't even looked at it yet. I left saying I'm going to get my phone back on and call with my new number. after I did that a couple hours later Ron called and gave me a very high price. I told him that I won't be able to do it for that price and I'll have to come get the truck. Ron continuously made references to me that if I leave the truck here he'll have to have it towed away. he even said this to me when I brought the truck in. Ron said he was going to leave my key under the driver floor mat for me. Well the next day when I went there to get my truck the first thing I noticed was all the tires in the bed of my truck had been moved. then I noticed that most of the things that I had in the cab were thrown in the bed of the truck and the tires with rims were on top of everything. I CAN THINK OF NO REASON TO MOVE ALL THESE THINGS FROM THE REAR SEAT OF A CHEVROLET SILVERADO 2500 HD DURAMAX DIESEL WITH A CREW CAB OUTSIDE THE VEHICLE, OR WHAT THE REASON WAS FOR MOVING THE TIRES FROM WHERE THEY WERE SECURED IN THE FRONT BED OF THE TRUCK. Because of this unnecessary act some of my things were damaged. Next time I'll listen to AAA. there must be a reason a company is not certified with AAA, especially a big company like this one. it's cause they can not meet there basic standards. lesson learned... the picture of the tires lined up is how I delivered my truck to them, the other pictures is how I received it.

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Dameon Thompson

Great place to get transmission rebuilt I recommend anyone to go there if they have any transmission issues Jim is a great person to help you with your transmission issues

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Thomas Fernandez

Stopped by the La Mirada location several weeks ago on a Monday. Explained to them that I was having trouble with my transmission and that I wanted to have it looked at. I explained that I am burning transmission fluid that there is a line leaking that it is shifting hard and making funny noises. I explained to them that I'm an Uber driver and don't have the luxury of leaving my car at the dealer for 2 - 1/2 weeks before they could look to it. Leon's transmission came highly referred by my primary mechanic. When I talked to Ron on Monday he let me know that they would probably need 2 to 3 hours to look at it and determine what was going on and then get me back out on the road. When I arrived on Tuesday morning as scheduled I dropped off the vehicle, and waited for a call. After 6 hours I called them. I was told they drove it and everything was fine and the transmission didn't need any fluid. Ron advised me to take it back If it continues to leak and it continued to smell burning fluid. WHAT?? REALLY??? I clearly told Ron I saw the leaking line and that I could smell fluid burning. I have worked on cars before and clearly know the difference between oil burning and fluid burning. I am extremely disappointed with Leon's as I made it very clear what the problems were. Given their diagnosis and considering the length of time they kept my vehicle. I doubt very much that they even put it up on a rack to look at it. I'm not a "professional" mechanic but I clearly saw a line leaking and fluid dripping down the hard line. I was hoping to avoid taking my vehicle to the dealer and now it appears I may have no other choice. I will not trust my car to Leon's when they could not find an obvious leak after 6 hours. A good transmission shop should have found the leak just by putting my car up on a lift. A good transmission shop should have been able to hear how my transmission runs by driving it around. It feels to me like they did nothing but sit on my car for 6 hours and wasted my time. I would never refer anyone to this transmission shop. 8/5/25 update Took the Explorer to another mechanic, explained the issues I was having. He immediately put it up on a lift and within a few moments called me over to see it for myself. Showed me the transmission oil cooler was leaking and explained the trans fluid level was very low. After a few internet searches for a replacement cooler I learned this item was on factory recall. Unfortunately, it didn't apply to MY VIN. That's another issue I need to take up with Ford. The explanation the service/parts department gave me was lame. Stupid Ford!!! I have a new cooler and replacement fluid and I'm waiting for the mechanic to install it. NEVER trust Leon's Transmission Shop in La Mirada. 8/27/25 update Placed two follow calls to Jim A, the GM as he asked. Left TWO voicemail messages with my cell number in what I guess was a generic and unmonitored mailbox, I believe it was ext. 117. Not a single call back. Customer service is NOT their priority, sad.