Just experienced cold start issue - it started fine one day and the next, it started but ran rough. Died then no start. Sputters a bit when I try - tried full throttle crank as well. Nada. I replaced ECT last year with factory Volvo piece. Did thermostat at the same time. Found that the wires were s...

It was an AHAH moment! This morning, after mulling over all the comments and sleeping on it, I decided to inspect the connection. Pulled it apart, shoved the wires up through the connector, cleaned the female ends, plugged them on to be absolutely certain they were firmly attached, then slid the con...

So, this morning I plugged in my 519 reader, turned on the key, cleared the codes, and started the car. Idle speed 840 rpm, temp started out at 75, rose steadily to 190, and gauge was at 3 o'clock. So far, so good. Left reader on so that I could freeze frame reading and headed out. Got about 5 block...

Thanks, rguzz. Looked at link. Anybody have any idea if later connector is the same?

So, just installed factory ect and stat, straight from local Volvo dealer. Cleared code, started right up, cold idle 1100, then dropped to 840. Drove it around the block. So far, so good. Just service light. Started right up, drove to Quik Trip. Started again fine. Drove maybe a mile. Check engine! ...

Sorry, should be responding to erikv11.

Thank you all for such prompt replies. As I recall in reading other posts here and on Swedish Bricks, '96 and forward (and some very late '95s) are OBD11. Means Motronic 4.4. In response to mrbrian200, I did not change the ECT, but only cleaned it. It looked like new, as did the thermostat. Previous...

Hello, everyone. Sorry if I get windy... So, this is my 2nd brick - 1996 850T5 wagon. Lost the engine in my first one - a 1997 850T5 - timing belt before I knew enough about Volvos. Backyard mechanic of sorts - went to auto/diesel school in the 70's. Worked in a couple of dealerships. Built engines/...