| Three symptoms, overlapping causes: slipping (revs without speed) points to fluid problems or worn clutches; jerking or harsh shifts points to pressure-control faults, solenoids, mounts, or fluid condition; refusing to shift points to electronic faults, limp mode, or mechanical failure. The cheap causes — fluid, sensors, solenoids — sit behind all three, which is why diagnosis order matters more than the symptom itself.
Why us: The TrueTest™ inspection runs cheapest-cause-first — the order that protects your wallet. |
Matching the feel to the likely causes
- Slipping under acceleration: fluid level/condition first, clutch wear second — and every mile driven on it moves money from your pocket to the repair [details: safe-to-drive guide]
- Jerk or bang into gear: mounts and fluid first, pressure control and valve body second — often far cheaper than it feels
- Harsh shifts only when cold: fluid condition and early valve-body wear — classic catch-it-now territory
- Won’t shift / stuck in one gear: frequently limp mode — an electronic protective state, not necessarily destruction [details: sensor/solenoid guide]
- No reverse: one of the few symptoms that points strongly internal — diagnosis before any more driving
The one mistake that costs the most
Waiting to see if it gets worse. It will — these are wear systems under load — and the information you gain by waiting is information a free inspection would have given you while the fix was still small. Check the fluid today if you can; book the diagnosis either way. (The full symptom catalog: 7 signs of a failing transmission.)
Frequently Asked Questions
It started right after another shop did work on my car. Coincidence?
Worth examining — fluid type errors, low fill after a service, and disturbed connectors are real post-service causes. Tell us exactly what was done; it narrows the diagnosis fast, and we’ll give you a straight answer about whether the work is related.
Does cold Denver weather cause shifting problems?
Cold thickens fluid and exposes marginal components, so winter often reveals problems that summer masked. Cold-only symptoms are still symptoms — and usually the affordable kind if caught in their cold-only phase.
| Slipping, jerking, or stuck — describe it on the phone and we’ll tell you whether to drive it in or tow it.
Lakewood: 1194 S Pierce St (303) 816-3856 Free diagnosis · Cheapest-cause-first · Straight answer on the first call |
With over 10 years of hands-on experience in the automotive industry, including serving as General Manager for a high-volume transmission shop, Tom Christy brings deep operational and technical expertise to every facet of auto repair and service management. Having overseen multi-million-dollar operations, led national teams, and improved shop performance across sales, staffing, and customer service, Tom has a proven track record of growing revenue while reducing costs. Tom's real-world experience in transmission diagnostics, repair workflows, and customer satisfaction makes them a trusted voice in the field.
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