Car jerks when shifting from 1st to 2nd pontiac vibe 2007...

Q: Car jerks when shifting from 1st to 2nd

asked by on September 11, 2017

When i accelerate from a full stop I usually punch it, sorry.... I always punch it! There is still good pick-up but when it shifts into 2nd gear it feels as if its been slipping and finally grabs the gears cuz there is a forcefull jerk or lunge that would/is doing a job on the motor mounts if not the entire car. However, occasionally when I make a right turn and step on the gas it doesn't jerk and the acceleration is significantly faster and smoother. Error codes P0420 and p0741 are present

My car has 257000 miles.
My car has an automatic transmission.

Hi Darren. Thanks for writing in today. Of the two codes you’ve listed, the one that likely is the source of your jerking issue is the P-0741 code. The Powertrain Control Module (PCM) will set the P0741 diagnostic trouble code when it notices a difference between the rotational speed of the torque converter and the transmission input shaft that is greater than 200 revolutions per minute (RPM). The rotational speed of the torque converter and the transmission shaft should be equal when the torque converter lockup engine engages. If the torque converter RPM and the transmission input shaft RPM are not equal, the required 1:1 ratio has not been achieved, and the P0741 diagnostic trouble code will be set by the PCM as an indication that the torque converter clutch circuit is out of performance or stuck off. I would recommend reading this article, as it will indicate possible sources and repair solutions.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Does this vehicle have a steering wheel lock

Yes, you are recalling correctly. I have never worked on a car, at least a modern car that did not have a steering wheel lock. I would have your car repaired by a shop or a local YourMechanic technician and...

Replaced front calipers and pads, rotor on right front, but passenger side rotor is still burning and smoking?

You will need to check the caliper slides are not binding and are lubed properly. If okay then with wheel off see if rotor is binding and then open the bleeder on the caliper to see if it releases the...

Slow speed increase, check engine light on

Hello. If this occurred right after getting gas then you may have gotten contaminated fuel. If it has some water or some diesel in it then this will occur. Some of the time a fuel pump can fail after getting...

Related articles

A Buyer’s Guide to the 2007 Ford Crown Victoria
This This enduring Ford classic enjoyed a nearly two-decade run before being discontinued from the retail market with the 2007 model-year being the last. Ever-popular with law enforcement (for whom models continued in production through 2011), and senior citizens, the...
Pontiac Certified Pre-Owned (CPO) Car Program
If If you’re in the market for a used Pontiac vehicle, you may want to check out cars under their certified pre-owned program. Many manufacturers have a certified pre-owned (CPO) program, and each one is set up differently. Read on...
How to Buy a Classic Pontiac
Whether you want to buy a classic Pontiac for yourself or as a gift, here are some tips on buying one for a great value.