Question about 1992 Volvo 740
CAUTION: NEVER DISCONNECT THE BATTERY TERMINALS WITH THE ENGINE RUNNING. This will instantly destroy the 6-way rectifier/voltage regulator.
Check that the Generator Failure light comes on and stays on with key on and engine off. N.G., verify your connections on the back of the generator. This circuit must function or the generator will never charge the battery. If this indicator circuit is miswired (the small spade connector is disconnected, plugged into the wrong connection or otherwise nerfed) the voltage regulator open-circuits the field (rotor) windings and in turn, the generator will never charge and freewheel. Check the circuit from the connector on the back of the generator all the way to the dash, verifying the light bulb in the dash is good. My trick is to wire in a small 3 watt bulb (or a continuity light) in series with the circuit under the hood. Turn the key on to KP II and verify it lights up.
Others: Check ground from generator to engine. This is usually a large blue cable that ties off onto a bracket near the air valve. Check ground from engine to body. Check ground from battery to body to engine. Must read less than 1 ohm on your megger.
Posted on Oct 22, 2013
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Nov 30, 2010 | 1999 Saturn SL
Nov 13, 2010 | 2009 Ford Taurus
Sep 22, 2010 | 1992 Pontiac Grand Am
May 06, 2010 | 2003 Chevrolet Impala
Jan 21, 2010 | 2001 Saab 9-3
Jan 20, 2010 | 2006 Lexus RX400h Used Cars
Oct 28, 2009 | 1998 Toyota Camry
Apr 14, 2009 | 1994 Nissan Pathfinder
41 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: