A friend just got a used golf 4 and it jerks when he engages the reverse gear (that's after it first makes a "kum" sound). While we drove, i also noticed that when he slows down upon seeing traffic, the car jerks then too until he engages the neutral gear. He doesnt know what to do so i thought to bring the case here. I need expert knowledge and advice on this issue.

tolex29:
A friend just got a used golf 4 and it jerks when he engages the reverse gear (that's after it first makes a "kum" sound). While we drove, i also noticed that when he slows down upon seeing traffic, the car jerks then too until he engages the neutral gear. He doesnt know what to do so i thought to bring the case here. I need expert knowledge and advice on this issue.

Could be engine mounts, might also be a transmission problem. Scan the vehicle and do a visual inspection of the mounts.

Try checking your fuel pump.

AutosBay:
Try checking your fuel pump.

For?

tolex29:
A friend just got a used golf 4 and it jerks when he engages the reverse gear (that's after it first makes a "kum" sound). While we drove, i also noticed that when he slows down upon seeing traffic, the car jerks then too until he engages the neutral gear. He doesnt know what to do so i thought to bring the case here. I need expert knowledge and advice on this issue.

Its definitely the engine mounts.

DECOtech:


Its definitely the engine mounts.

God bless you for this info. I just called my local mechanic now and he confirmed that it might be the engine mount/seat(is it also called seat?).

But is it this same mount that makes it jerk when one is slowing down towards traffic?

Also remember sir that the "kum" sound and jerking mentioned before above only happens when the gear is changed to REVERSE. Do you feel we're still on the right track to say it's the engine mount?

If the jerking occurs when the car is on motion then we could be looking @ thousand and one things but if that sound exists when you engage the transmission. Check your engine and transmission mounts. But as for the jerking while on motion to nail down the culprit run a scan on your car

tolex29:


God bless you for this info. I just called my local mechanic now and he confirmed that it might be the engine mount/seat(is it also called seat?).

But is it this same mount that makes it jerk when one is slowing down towards traffic?

Also remember sir that the "kum" sound and jerking mentioned before above only happens when the gear is changed to REVERSE. Do you feel we're still on the right track to say it's the engine mount?

Yes, check your mounts first

Thanks all. We checked today and it was indeed the mount...in really bad shape it was!

Please, a scan was run and it showed that the ABS left sensor (front and back) was faulty. I asked them to do this cause the ABS was always showing on the dashboard while driving. Please do I need to replace this or just repair? Both front and rear the machine detected as faulty. Advice pls.

tolex29:
Thanks all. We checked today and it was indeed the mount...in really bad shape it was!

Please, a scan was run and it showed that the ABS left sensor (front and back) was faulty. I asked them to do this cause the ABS was always showing on the dashboard while driving. Please do I need to replace this or just repair? Both front and rear the machine detected as faulty. Advice pls.

The sensor itself could be bad but am sure the wire could have been over stretched or cut, which ever one is being said to be bad from the result of the scan should be checked