The rear end has like a slight jerk when getting on the g...
Responses
Ronnie
334 days ago
Hi! Welcome to JustAnswer. Thank you for contacting us for assistance with your vehicle. I'm Ron. I will be happy to assist you with your question. May I ask to whom I have the pleasure of speaking with today?
Customer
334 days ago
Jarrett
Ronnie
334 days ago
Good morning Jarrett. Nice to see you today! I'm sorry to hear you are having this problem. I know this can be frustrating. Please give me one moment to type out some information for you. Sit tight one minute. I'll be right back !
Customer
334 days ago
Okay
Ronnie
334 days ago
Thank you for holding Jarrett,
The common cause for the type of jerking you are feeling on this 2003 Impreza is usually due to a binding CV joint in one or both of the rear-drive [axles](/topics-axle/) or in some cases excessive play in the rear differential. At either rate, this could result in a fairly expensive repair. I would insist on this being checked and repair before you consider making this purchase. If the seller in not able and or will willing to do this for you then you would be very wise to take the car to your trusted mechanic and have a complete prepurchase inspection performed to verify this is not a major repaired needed.
Customer
334 days ago
Okay, so this is what I could be feeling when hitting the gas? It doesn't seem to do it unless taking off
Ronnie
334 days ago
Yes, your only feeling it when taking off because you are likely taking up the slack if in fact, the axle is the cause. I would have it inspected first before you consider this purchase.
Customer
334 days ago
Okay thank you for the information
Ronnie
334 days ago
You're very welcome, Jarrett, Glad I could be of some help today! I hope everything works out well for you! If there are any additional questions on this issue that should arise, please feel free to reply and ask! Have a great day.
Customer
334 days ago
Hi, I talked to the seller he said it dosent jerk under normal driving conditions just went giving it extra gas, could the [fuel pump](/topics-fuel-pump/) just be the culprit?
Ronnie
334 days ago
It's not likely a fuel pump concern if the engine runs with full power under load Jarrett, If it does not then a fuel pressure test would need to be done while the problem is occurring.
Customer
334 days ago
Okay, and what about the possibility of a vacuum leak / turbo leak causing the jerk?
Ronnie
334 days ago
If you had a vacuum leak or a turbo leaking the check engine light would be on and there would be fault codes set as well.
Customer
334 days ago
Just trying to eliminate as many things as possible
Ronnie
334 days ago
If you do not have a check engine light on then the problem is not likely with the electronic engine control system.
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The rear end has like a slight jerk when getting on the gas Mechanic's Assistant: Have you noticed an increase in fuel consumption? And how does the vehicle start—same as usual? I do not know, I test drove the vehic...
The rear end has like a slight jerk when getting on the gas Mechanic's Assistant: Have you noticed an increase in fuel consumption? And how does the vehicle start—same as usual? I do not know, I test drove the vehicle looking to buy Mechanic's Assistant: What is the make/model/year of your car? 2003 Subaru Impreza WRX Mechanic's Assistant: Are you fixing your Impreza WRX yourself? What have you tried so far? No, and nothing I’m looking at buying the car Mechanic's Assistant: Anything else you want the Mechanic to know before I connect you? N