I have a new to me 1999 Volvo V70XC. I am trying to diagnose a transmission issue.

https://www.matthewsvolvosite.com/forums/viewtopic.php?f=1&t=57794

P0740 and P1618 codes on OBD2. I have tools and garage space available at times ( My fathers place)

I have maintained and repaired all my cars ...

The normal speed where the torque converter will lock is between 45 MPH and 55 MPH in 4th gear. That is why the code doesn't set in city driving.

I think you have a bum SL solenoid or at least a bad electrical connection to it. The transmission electrical connector carries all of the wires for all ...

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If these are done properly they are tight and loud. They take up as much or less room than the infinity basslink ( which is a steep above a bazooka tube).

I had a JL 13W7 ...

http://www.thetoolwarehouse.net/p-6443-sur-r-ckv5.aspx

I found it. I think I need to do one on mine. I have intermittent hard starting when mine is warm. Normally its 2 cranks and fired but if I am running errands and am in and out. It takes 4-5 before it fires. Not every time but often enough to ...

Thank you Milehigh.
That makes sense.

Thank you Lee.
That is the method I used.

I drove slowly up to speed in the highway last night after work. I felt the lock engage at around 55 mph the Rpms dropped. Then about 10 seconds later I felt it disengage and the Rpms increased slightly.
Does this confirm a bum solenoid? That sounds like ...

Thank you for the replies.
The part that confused me was that it showed up when I drove it on the highway in the "3" position and it still popped up.
I would think if it was a lock up solenoid issue that it would show up D after 4th gear ( which it does) but not when it is 3rd gear.
When it did ...

Hi Everyone!

I just purchased a 1999 V70XC. I love it. This is my first Volvo but I have been lusting after them since the 850 Turbo wagon was on Motor trends cover in the 90's. "150 MPH Wagon !!" if I recall correctly.

I have purchased a 2 owner 1999 V70XC in white with tan interior. It has ...