Well, so far the car is reliable and working great. Starts every time. Hope it continues. Maybe the added check valve I added, then removed was the culprit. Keeping my fingers crossed.....

Had it to an independent shop. They couldn't get it to the no start problem. I ened up replacing the fuel filter and taking out the check valve I installed near the filter. Since the fuel pump was...

Hey, thanks for the feedback. I'll look into trying anything at this point. Could be the problem. Thanks, Pat

Thanks for the perspective Bud. I don't get any codes and that's the problem. I know it started after the dealer replaced a battery/ engine wiring loom, so one would logically look there. i have, but...

Ooops. Spoke too soon. The gremlin is back. Drove for 15 minutes, then parked the car for 20 minutes and guess what? Turned over but no start. Waited 5 minutes and started right up and drove like...

Replaced the fuel pump relay and has been reliable ever since. Thanks so much for the good advise and direction. The dealer had no clue it was that part. Thanks!

I'm pretty picky and I agree that most dealers are clueless. Joe Rice, the service manager at Sarasota Volvo was open minded and wanted to solve the problem. While there are plenty of bad...

The dealer felt the check valve didn't hurt anything and instead replaced the fuel pump relay. Any concerns with the check valve still in place? Pat

Thanks for the good advise. I had the dealer replace the fuel pump relay and he mentioned it was perhaps too hot when removed, so maybe a sign of overheating. So far the car runs fine and we'll see...

OK. Update after I paid to have a new fuel pump installed by the dealer. No trouble codes registered. Extra check valve near fuel pump still installed. Fuel filter was not replaced. Car ran fine for...

I get in my 2000 V70 XC about 18 mpg around city/country and 23 mpg on hwy at 75+ mph using premium fuel and A/C on. It only has 87K miles on it.

I will test that approach. I did have a new check valve that was installed near the fuel filter. That was suppose to keep the fuel pressure an was confirmed by the dealer. I wonder if the check valve...

Thanks for the info. I did have a new check valve installed in the fuel line (near the fuell filter) by the dealer and they reported good and consistent fuel pressure. Curiously, that is when the...

I have a wonderful 2000 XC70 that I've owned since new. Kind of a rare bright red/tan interior combo. The car has only 87K miles and all original paint with no rust ever. My problem occurred when it...

i am the original owner of a 2000 xc (last year for the classic brick design) that just turned 81k miles. it's all original and in fantastic condition. Originally purchased in Minneapolis as a gift...