The oxygen sensor is located on your lower exaust pipe just before the cat underneath the car
My 1991 740 volvo turbo doesnt start specially during the morning.Is it comes with a cold start valve?
in the distributor in the rear of the engine. sometimes known as a hall sensor
try changing the crank shaft sensor,which is located on the firewall on the 1991 740 non turbo sedan,i had the same problem and just about a month ago had to replace it.
On a Regina ignition (to identified check the ignition coil, it's a big square one) if i'ts your case, the sensor is a Air temperature sensor (locate close the air filter)
This can not be answered, there are many "Solinoids" on this car that do many diferent things.
The engine is not running!
After searching everywhere I finally found the 1 site that does Volvo's, as I also own a 1991 740 GL Wagon with the Regina engine. This the site I had to go to http://www.vindecoder.net/. Good luck. Selina
I have had volvo's for years and have had 4 740's including the one I have now and I use nothing but Castrol 20w50 in all of them, yes even in the winter. Also I have 2 740's now with over 300,000 miles on them.
allows power distribution to the overdrive solenoid for overdrive engagement.
you have to take the starter out of the car and dismantle it.....it's an integral unit
change the overdrive sensor should be on the left side of the gear box.
To fix the cruise control on a 1991 Volvo 740, start by checking the fuses related to the cruise control system for any blown fuses. Next, inspect the cruise control switch and wiring for damage or loose connections. The vacuum actuator should also be examined to ensure it operates correctly and isn't leaking. If these components are functioning properly, consider testing the speed sensor and the ECU for faults.