My 1987 740gle speedo quit working. I checked the transmission for the sending unit/cable and found nothing. I found out this car uses an electric unit. It is located on the rear axle. It has a plug with 2 wires located on the differential cover. check it out, I'll guess you have a wire broken or maybe it just simply came unplugged.
there is no such thing
5 X 108
depends on the year. my 740(1990) has none!
about 3117 lbs
Volvo recommends 10w30 full synthetic oil.
There are several things that can cause your 1990 Volvo 740 to stall while driving. The most common cause is a bad fuel pump.
Check the wires on the back of the rear axle. There is a sensor there for the speedometer. If the wires break, it will not read any speed or distance. I have had to repair mine twice. The sensor is on the drivers side of the differential to the rear. Hope that is it. Figure out the anti swaybar travel when you repair the connection to the sensor
2
Broken valve spring
you can find it in a workshop manual
if its a 4 cylinder....1,3,4,2 if its a 6....1,6,3,5,2,4
Right above the oil pan in the center of the block.