Why Your Vehicle Jerks When Changing Gears

Longmont’s Trusted Transmission Repair Shop

A smooth-running transmission should move between gears with little noticeable hesitation or movement. If your vehicle suddenly jerks when changing gears, shifts hard, hesitates, or produces a noticeable jolt during acceleration, it may need attention. For drivers in Longmont and surrounding areas, addressing transmission problems early can help prevent more extensive and expensive auto repair down the road.

At Twin Peaks Auto Repair Longmont, experienced ASE Certified auto technicians can diagnose shifting problems and determine what is causing your vehicle to behave differently.

Possible Causes of Jerking When Gears Shift

There can be one or more reasons a vehicle jerks when the gears shift. Common problems can include one or more of the following:

Low or Contaminated Transmission Fluid

Transmission fluid provides lubrication, helps control temperature, and allows the transmission to operate smoothly. If the fluid level becomes too low, the transmission may struggle to engage gears properly, resulting in jerking, hesitation, or hard shifts.

Old or contaminated transmission fluid can create similar problems. Over time, transmission fluid can break down and become less effective. A professional auto repair shop can inspect the fluid level and condition while also checking for leaks or other potential transmission concerns.

Transmission Fluid Leaks

If your transmission is losing fluid, there may be a leak from a seal, gasket, pan, line, or another component. Low transmission fluid can lead to increased friction and poor shifting performance.

You may notice reddish or brownish fluid underneath your parked vehicle, although some leaks aren’t immediately visible. Because operating a transmission with insufficient fluid can cause significant damage, suspected leaks should be inspected promptly.

Worn Transmission Components

A transmission contains numerous components that must work together to provide smooth gear changes. Worn clutches, bands, gears, solenoids, or other internal components can contribute to jerking and rough shifting.

The cause isn’t always obvious from the way the vehicle feels. Professional diagnostics can help determine whether the issue is related to a relatively minor component or a more significant transmission repair.

Faulty Transmission Solenoids

Modern automatic transmissions use solenoids to help regulate transmission fluid flow and control gear changes. When a solenoid isn’t operating correctly, you might experience delayed shifting, hard shifts, slipping, or jerking between gears.

Because today’s vehicles rely heavily on electronic controls, advanced computer diagnostics can be an important part of identifying transmission problems.

Engine Performance Problems

Jerking during acceleration doesn’t always mean the transmission is failing. Problems with the engine or fuel system can sometimes create symptoms that feel like transmission trouble.

Worn spark plugs, ignition problems, dirty fuel injectors, airflow issues, or other engine performance concerns can cause hesitation and jerking. This is one reason having the vehicle properly diagnosed before replacing parts is so important.

Don’t Ignore Changes in Shifting

A vehicle that occasionally shifts differently under certain driving conditions may not necessarily have a major problem. However, persistent or worsening symptoms deserve attention. In addition to jerking between gears, watch for warning signs such as:

• Delayed engagement when shifting into Drive or Reverse
• Transmission slipping
• Unusual grinding, whining, or clunking noises
• Burning odors
• Fluid underneath the vehicle
• Difficulty accelerating
• Check engine or transmission warning lights

Continuing to drive with an unresolved transmission problem can increase wear and potentially turn a manageable auto repair into a much larger one.

Transmission Service in Longmont

Longmont drivers encounter everything from daily stop-and-go traffic to highway commuting and trips into Colorado’s mountains. Keeping your transmission properly maintained helps your vehicle handle these changing driving conditions while delivering dependable performance.

If your car, truck, or SUV is jerking, hesitating, or shifting differently than usual, bring it to Twin Peaks Auto Repair Longmont. Our ASE Certified auto technicians can inspect your vehicle, perform the necessary diagnostics, and recommend the appropriate repairs based on what we find.

Don’t wait for rough shifting to become a bigger transmission problem. Contact Twin Peaks Auto Repair for professional transmission service and auto repair in Longmont and keep your vehicle shifting smoothly.