Frequently Asked Questions

Low or contaminated transmission fluid is the most common cause of slipping or hard shifting. Worn internal components, electronic sensor issues, or overheating can also affect shift quality. At J&M Transmissions, we use detailed testing to identify the root cause before recommending repairs.

Most manufacturers recommend changing transmission fluid every 30,000 to 60,000 miles, depending on driving conditions. Vehicles driven in stop-and-go Tyler traffic or extreme East Texas heat benefit from more frequent service. Regular fluid changes help prevent costly breakdowns and maintain smooth shifting.

A transmission service typically includes fluid replacement, filter changes, and inspection for leaks or performance issues. At J&M Transmissions, we also check fluid condition and test system operation to ensure consistent power delivery and smooth shifting before you leave.

Yes, routine maintenance catches small issues before they become major failures. Fluid checks, belt inspections, and following manufacturer-recommended service intervals help improve reliability and fuel efficiency. This is especially important for vehicles exposed to East Texas heat and long daily drives.

A diagnostic fee covers the time and equipment needed to accurately identify the problem. At J&M Transmissions, the flat $70 diagnosis fee is applied to pinpoint issues before any repair work begins, helping avoid unnecessary fixes and giving you clear next steps.

A check engine light can indicate anything from a loose gas cap to sensor failures or engine performance issues. Accurate diagnostics using structured testing confirm the true source of the problem. At J&M Transmissions, we provide clear explanations and repair recommendations based on test results.

High temperatures stress cooling systems, transmission fluid, and engine components, leading to overheating or reduced performance. Vehicles driven in Tyler's climate benefit from proactive fluid checks, AC inspections, and cooling system maintenance to prevent heat-related breakdowns.

Weak airflow, warm air from the vents, or intermittent cooling are common signs of AC trouble. Issues often stem from refrigerant leaks, compressor problems, or sensor faults. At J&M Transmissions, we diagnose and repair AC systems to keep your cabin comfortable during Texas summers.

Yes, J&M Transmissions services both automatic and manual transmission systems. Repairs are tailored to vehicle usage common in Tyler, including highway and city driving. We use detailed testing to confirm proper operation before returning your vehicle.

Ignoring early warning signs like unusual noises, loss of power, or overheating often leads to more expensive damage. Early diagnosis prevents cascading failures and helps maintain reliability. At J&M Transmissions, we encourage drivers to address engine issues before they worsen.

Electrical diagnosis involves battery testing, sensor checks, and tracing wiring faults using specialized equipment. Modern vehicles have complex electronic systems, so accurate testing prevents repeat failures. At J&M Transmissions, we provide clear findings and next steps after completing electrical diagnostics.

Schedule an inspection if you notice delayed engagement, slipping, hard shifting, or warning lights. Regular inspections are also recommended before long trips or at routine service intervals. Proactive scheduling helps catch leaks and performance issues before costly repairs are needed.