The handle on my dipstick broke off. When that happened the engine started surging, slightly, at idle and while driving.

My (not Volvo dealer) mechanic said I needed a new dipstick, since the V8 engine in my 2005 V8 is sensitive to air pressure leaks there.

I replaced the dipstick with a new one after pulling out the handle-less dipstick with pliers. The engine surging is still there.

When I bought the dipstick I also purchased a little $5 rubber o-ring, thinking it would fit on the dipstick itself and further seal the dipstick hole. But the o-ring does not fit ON the dipstick.

I am wondering if I should just shove it down the larger entry hole to the bottom, where the narrow stick slot starts.

 

You mean this seal? this goes on the dipstick tube, on the bottom to seal between the tube and the block

 

My dipstick also broke off at the handle. I found a replacement on Amazon I believe with the top o ring already installed. I'd find the correct o ring that fits in the handle in a recess to ensure it stays put or replace the whole unit..

 

Thanks!

I thought so, but was not certain.

 

My o-ring is black, not green.
Is there a part number for what you picture if the seal I got is not the correct one?