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892 Old Claremont Road Charlestown, NH, 03603
  • MON: 8:00AM - 5:00PM
  • TUES: 8:00AM - 5:00PM
  • WED: 8:00AM - 5:00PM
  • THUR: 8:00AM - 5:00PM
  • FRI: 8:00AM - 5:00PM
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86 Route 10 South Grantham, NH, 03753
  • MON: 8:00AM - 5:00PM
  • TUES: 8:00AM - 5:00PM
  • WED: 8:00AM - 5:00PM
  • THUR: 8:00AM - 5:00PM
  • FRI: 8:00AM - 5:00PM
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472 Sunapee Street Newport, NH, 03754
  • MON: 8:00AM - 5:00PM
  • TUES: 8:00AM - 5:00PM
  • WED: 8:00AM - 5:00PM
  • THUR: 8:00AM - 5:00PM
  • FRI: 8:00AM - 5:00PM
  • SAT: Closed
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Affordable Transmission Repair Services From J.S. Automotive

Get Fast Repairs Done Right At J.S. Automotive

From manual to automatic transmission repair, J.S. Automotive knows how to fix any problem. First, our knowledgeable auto repair experts will diagnose any transmission problems. Next, we help you decide the best course of action. Finally, you can rest assured when you leave the repair to us!

To learn more about our transmission services call or come by any of our Southwestern New Hampshire area locations.

Our competitively priced transmission services include:

Automatic Transmission
Automatic Transmissions shift between gears automatically to optimize driving, and changes gears based on the driver's throttle pedal, vehicle speed, engine speed, and vehicle load. Typical automatic transmissions have 4-5 forward gear ratios, a Reverse, Park, and Neutral gear. Shifting gears occur automatically once the car is in Drive and there is no need for a clutch pedal or gear shift like there is in a Manual Transmission. Automatic transmission repair is complicated based on all the components that make it up, and you need to have any automatic transmission issues properly assessed by auto mechanics. Call J.S. Automotive to talk to our mechanics about your transmission problems.

Clutches
There are clutches in both automatic and manual transmission cars, and different types of clutches. When shifting gears, the clutch engages and disengages from the flywheel and transfers the torque through the transmission. Clutches should help your vehicle start and shift gears smoothly. The clutch in your car receives a lot of wear and can eventually wear out. If your clutch begins slipping irregularly or is making noises that are raising suspicion, contact J.S. Automotive to see if clutch replacement is necessary.

Four-Wheel Drive Transmission
A four-wheel (4x4) drive vehicle has differential gears, both front and rear axles, and a transfer case attached to the transmission. Four-wheel drive vehicles demand maintenance on the transfer case, front differentials, rear differentials, and transmission fluids. Visit us in Southwestern New Hampshire for service on your four-wheel drive transmission services.

Front-Wheel Drive Transmission
If your vehicle has Front-wheel drive, the engine drives the front wheels only. The power is routed through the transmission to the final drive where it is split and sent to the two front wheels through the drive axles. The engine, transmission, and additional hardware is all located in the front of the car. If you are in need, J.S. Automotive in Southwestern New Hampshire will gladly repair front-wheel drive transmission vehicles.

Manual Transmission
Driving a vehicle with a Manual Transmission requires using the clutch pedal and gear shift to manually shift gears based on the speed of the vehicle. Manual transmissions have been built with anywhere from two to eight gears. Front-wheel drive and rear-wheel drive are the two main configurations for manual transmissions. Typically, manual transmissions require less maintenance then automatic transmissions. At J.S. Automotive, our auto mechanics can diagnose your vehicle and then recommend the transmission repair or transmission service you need to ensure safety and improve the lifetime of your vehicle.

Service, Diagnose and Repair
Transmission repair is not something to take lightly. The transmission is connected to key parts of your vehicle and needs to be working properly for your safety. Transmission services include replacing filters and draining fluids to prevent transmission damage. Typical transmission issues that may lead to repair may include shifting issues, slipping, stalling, fluid leaking, and the service light turning on. If you are concerned that you may need transmission repair, don't hesitate to schedule an appointment at J.S. Automotive today.

Transfer Cases
A transfer case is a part of a four wheel drive system found in four wheel drive and all wheel drive vehicles. The transfer case receives power from the transmission and sends it to both the front and rear axles. This can be done with a set of gears, but the majority of transfer cases manufactured today are chain driven. The transfer case is connected to the transmission and also to the front and rear axles by means of drive shafts.Trust the automotive experts at J.S. Automotive for all your transmission repairs.

Transmission Exchange
Although most manufacturers recommend a transmission flush every 30,000 miles or every two years, some symptoms may indicate that you need a transmission flush sooner. Some of the symptoms that indicate that your car needs a transmission flush sooner are: transmission grinding or strange noises, problems shifting gears, slipping gears, surging of the car, and delay in vehicle movement. Flushing the used fluid from the transmission washes away tiny particles of dirt, clutch material, and metal shavings. For all your transmission flush needs, call or visit J.S. Automotive today - we are transmission experts.

Transmission Repair FAQs

How long does a transmission take to repair?

The duration of a transmission repair can vary based on several factors. Simple repairs, like fixing a minor leak or replacing a sensor, can often be completed within a day or even a few hours. However, for more complex issues such as a complete transmission rebuild or replacement, it may take several days to a week or more.

What happens during transmission repair?

It often involves the removal of old transmission fluid and its replacement with fresh fluid. Common repairs may include fixing damaged gears, replacing worn-out seals, repairing or replacing the torque converter, or addressing electronic control module issues.

How often do transmissions need to be replaced?

Transmissions are designed to be durable and can last a long time with proper maintenance and care. If you drive a car with an automatic transmission you need to change your transmission fluid every 60,000 to 100,000 miles. In the case of a manual transmission, it's recommended that the transmission fluid be changed every 30,000 to 60,000 miles. The actual lifespan can vary depending on factors such as the vehicle's make and model, driving habits, maintenance routines, and environmental conditions.

J.S. Automotive - Charlestown Transmission Services
Call Now: (603) 826-6874
Address: 892 Old Claremont Road Charlestown, NH 03603
Service Hours

Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday

8:00AM - 5:00PM
8:00AM - 5:00PM
8:00AM - 5:00PM
8:00AM - 5:00PM
8:00AM - 5:00PM
Closed
Closed

Request An Appointment
Area Served:
Sunapee, New London, Hanover, Claremont, Springfield
J.S. Automotive - Grantham Transmission Services
Call Now: (603) 667-9094
Address: 86 Route 10 South Grantham, NH 03753
Service Hours

Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday

8:00AM - 5:00PM
8:00AM - 5:00PM
8:00AM - 5:00PM
8:00AM - 5:00PM
8:00AM - 5:00PM
Closed
Closed

Request An Appointment
Area Served:
Sunapee, New London, Hanover, Claremont, Springfield
J.S. Automotive - Newport Transmission Services
Call Now: (603) 873-4175
Address: 472 Sunapee Street Newport, NH 03754
Service Hours

Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday

8:00AM - 5:00PM
8:00AM - 5:00PM
8:00AM - 5:00PM
8:00AM - 5:00PM
8:00AM - 5:00PM
Closed
Closed

Request An Appointment
Area Served:
Sunapee, New London, Hanover, Claremont, Springfield

associations

  • Car Care Aware
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WHAT OUR CUSTOMERS SAY

My wife's 5-yo Ford Edge developed a dead battery on Christmas day. We were able to jump start it, and drive it in to JS Auto in Grantham. Chris was kind enough to fit us in the next day, when they opened, run the full diagnostics, and install a new battery. They were fully booked that whole week, and had one person out sick, but he was able to fit us in even after the holiday. As usual, they were thorough, and did a great job. My wife and I are very appreciative of their going the extra mile to help their customers! , 12/26/2023

J.S. Automotive

J.S. Automotive - Charlestown 892 Old Claremont Road Charlestown, NH 03603 (603) 826-6874
J.S. Automotive - Grantham 86 Route 10 South Grantham, NH 03753 (603) 667-9094
J.S. Automotive - Newport 472 Sunapee Street Newport, NH 03754 (603) 873-4175

Ask any car or truck owner in Southwestern New Hampshire who they recommend. Chances are they will tell you J.S. Automotive.