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To read codes for a 1991 Volvo 740, you need to locate the diagnostic connector, typically found near the driver's side under the dashboard. Use a jumper wire to connect terminals A and B in the connector. Then, turn the ignition key to the "on" position without starting the engine; the check engine light will flash a series of codes that correspond to specific fault codes. Count the flashes to identify the codes, which can be referenced in the service manual for diagnosis.
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1991 Volvo 740 turbo hard start when cold?
My 1991 740 volvo turbo doesnt start specially during the morning.Is it comes with a cold start valve?
Where is dlc connector on 1991 Volvo 740?
where is the diagonistic tester located on a 1991volvo740 It is located on the drivers side of the car under the hood to the front of the hood hinge. This system is not OBD2 so the codes have to be read either manually or by a scan tool with a 6 prong connector.
Where is the solenoid on 1991 Volvo 740?
This can not be answered, there are many "Solinoids" on this car that do many diferent things.
What causes a 1991 Volvo 740 to shut down when it hits 2 rpm?
The engine is not running!
Where can you get your vin decoded on a 1991 740 Volvo thanks Steve?
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
What kind of Oil for a 1991 Volvo 740?
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.
What does an overdrive relay do in a 1991 740 Volvo?
allows power distribution to the overdrive solenoid for overdrive engagement.
How do you change the solenoid on the starter for a 1991 Volvo 740?
you have to take the starter out of the car and dismantle it.....it's an integral unit
Were is the fuse box on a 1991 Volvo 740?
under the ashtray, center console. pull out the tray and the little flap below it
Why is there a dark fluid that smells like gas in the coolant tank of 1991 Volvo 740 sedan?
bad head gasket.
Where is the fuel filter located on a 1991 Volvo 740?
Drivers side, inside of frame about where the trailing edge of the drivers door is.
What motor comes in a 1991 Volvo 740 turbo?
BF230FT 2.3L 4 Cyl w/ Mitsubishi or garret turbocharger.
