Two weeks ago on a blazin hot weekend I brought my Nissan Frontier in because the car was bucking and transmission was slam shifting. You were very busy but checked my fluid and tried to get the irractic problem to repeat. With your assurance that transmission was not burning up, we were able to drive gently back to the Bay Area, much of the way in 3rd gear. You refused to accept any payment or tip though you were a great help. FYI, it was more an engine communication issue. The Nissan dealer found the crankshaft position sensor bad and suspected the cam shaft sensors might be damaged as well. They found the flex plate undamaged. After about $1000 and 2 days, we were fixed - and trouble free since. Thanks so much.
While preping for a cross country trip, we took our 2002 Dodge Ram2500 in for routine service. We pulled our 5th wheel over 13,000 miles in six months. I felt confident in Mike, Ed and Freddie and all they did prior to our trip. While in Illinois, I encountered a minor issue and was able to call Sonora Transmission for a consultation and was assured all would be fine during the rest our trip. Again, confident in what I was told by Mike at Sonora Transmission. I returned to California and took my truck in for routine maintenance after our long trip through the high desert, northern plains, the Rockies, gulf coast and the Midwest. Got my truck back in way better condition and now we’re on our next adventure to Southern California and Las Vegas without a worry what so ever. Driving up the grapevine after having it serviced, I noticed a tremendous change in pulling power and torque that was not there prior to serving at Sonora Transmission. I had to call Mike and thank him for the service provided. Great Job Mike, Ed and Freddie.....thanks for all you did, replacing my radiator, charging and fixing my air conditioning and being there on the phone when a consultation is needed!!!! Juan & Cynthia Valdivia
At Sonora Transmissions & Auto Repair in Sonora we like to stay on top of our JASPER news. JASPER just released a GM 5.3L engine with a DOD/AFM deleted option (not available in California), and an available DiabloSport i3 programmer.
Happy Flag Day, from your favorite mechanics at Sonora Transmissions & Auto Repair in Sonora!
Since its release in 2011, the JASPER GM 6L80 has been a popular transmission for replacement and performance enhancement purposes.