1991 Volvo 940 - Answered Questions & Fixed issues
Need diagram for heater core replacement
Are you sure it needs to be replaced and not reversed flushed?To reverse flush the heater core there are 2 hoses next to each other that go from the engine through the firewall disconnect them and with a garden hose run water through the nipples they where hooked up to.Most heater cores don't need to be replaced unless you see water/anti-freeze on the passenger side floor mat.
11/26/2015 3:47:14 PM •
1991 Volvo 940
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Answered
on Nov 26, 2015
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188 views
My 08 volvo c30 wont start my drive belt thorn
By drive belt do you mean the accessory drive belt ? Or are you referring to the timing belt ? A broken accy belt should not cause the car to not start unless the belt slapped around and broke something in the engine area. Check all around and under the front of the engine for damaged wires or wire connections to engine sensors that may have been damaged by the slapping belt. If its the timing belt your talking about then you need a mechanic .
8/9/2013 7:12:56 AM •
1991 Volvo 940
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Answered
on Aug 09, 2013
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237 views
My 91 volvo 940 wont start
The top tips for making your car more fuel efficient are Set your cruise control to 55 mph, change your air filter, check for proper tire pressure, and don't allow your car to idle for long periods of time.----------------------------------------------------------------
GM Tech2 GM Diagnostic Scanner
12/22/2012 1:40:21 AM •
1991 Volvo 940
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Answered
on Dec 22, 2012
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235 views
Melted wires on the postive battery terminal
One of those secondaries will be the feeder for the ignition switch. The other may be for the fuse box, or may be for something else that is powered at all times-like the headlight switch. Here's how to clean it up:First take off the negative battery cable-negative first to avoid sparking. Now you can pull off the positive. Most new positive battery cables only come with one "pigtail" or secondary insulated wire. But if you tell the parts person you have a Volvo and the year, they may have a cable specifically for your car with two secondaries. Or you could try the dealer for the right cable.Barring that, if you just want to fix your old cable without buying a new one, you could take the stripped wire and crimp a new eyelet connector on the end and wrap the bare portion with several wraps of electrical tape. Now put the big cable terminal on the battery post, take off the nut on the tightener bolt, put the eyelet connector over the bolt, and tighten the nut down on the bolt. Now both secondary wires are attached? Put the negative post on and tighten it down. To avoid corrosion at the posts you can smear a little petroleum jelly (vaseline) on the post and cable connections, if you want.
12/1/2012 7:33:59 PM •
1991 Volvo 940
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Answered
on Dec 01, 2012
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111 views
Power seat wont wok
Have you tested it to see if power is present at the control switch? Do this first.
6/6/2012 8:02:18 PM •
1991 Volvo 940
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Answered
on Jun 06, 2012
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95 views
Im not getting any power
check the crank sensor wiring harness. pull on the wires a bit, to see if it will crank over. it should be against the firewall in back of engine. its a 3 wire connector. they are prone to fail.if wire harness is bad, replace it. hope this helps!!
5/26/2011 5:41:15 PM •
1991 Volvo 940
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Answered
on May 26, 2011
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125 views
940 SE Turbo won't start.
try changing the distributor cap and if that doesnt work then the coil in case the coil tower insulation is breaking down
11/30/2013 10:01:15 AM •
1991 Volvo 940
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Answered
on Nov 30, 2013
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279 views
I own a 1991 volvo
what were the specific inspection details like Co, 02, CO2 and NOx readings?
furthermore, have you done any maintenance like fuel filter, oil change and spark plugs?
9/22/2010 6:47:26 PM •
1991 Volvo 940
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Answered
on Sep 22, 2010
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234 views
My 1993 940 non-turbo just dies when running as if
OK the battery in good charge should be at 12.5 volts ( as measured with a voltmeter across the terminals) When the engine is running you should expect the reading to be about 14 volts. Put the lights on ( a load on the battery) and the voltage can go as high as 14.5v.
Switch everything off (I mean everything..radio etc) and disconnect the negative terminal to the battery. Now put the meter in ammeter mode and measure the current between the negative terminal and the cable that is now disconnected. It should be really very low current (milliamps at most), switch on the lights to show ourself what that current drain looks like. If the residual current looks significant take out each fuse in turn and return it noting on pen and paper any drop in current when the fuse is out. This process will identify the circuit that is draining the battery. Check the wires and junctions in this circuit for shorts etc. If its lights try removing bulbs until the current drain stops If possible leave the fuse out over night on this circuit and see if this effects the battery's ability to charge and stay charged.
8/30/2010 11:41:47 AM •
1991 Volvo 940
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Answered
on Aug 30, 2010
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257 views
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