Question about 1990 Volvo 760

1 Answer

Start up self diagnostic problems.

I have a 1990 Volvo 760 Turbo sedan. I have read that when the key is turned on to start the vehicle, all the "idiot" lights on the dash are supposed to light up for a bulb check and self diagnostics. Frequently when the key is turned on, only the check engine, low oil pressure, ABS and SRS lights will illuminate, and all but the ABS light will go out when the car is started. When this happens, the alternator does not charge the battery. When I rev the engine to 2500 RPMs or greater the ABS light will go out and the alternator will start charging to about 13.8 volts, but not the 14+ volts it puts out when it is started after illuminating all of the dash lights. What is causing this to happen?

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    MVP:

    An expert that got 5 achievements.

    Night Owl:

    An expert who has answered 10 or more questions between 12 midnight and 6am on the same day.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Contributor
  • 46 Answers

Maybe a little corrosion on the connection from your alt? it could cause the higher resistance to make the voltage drop. the higher rpm's increase flow of electricity forcing it through the corrosion... maybe???

Posted on Sep 22, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
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.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Unplugged alarm system...been working three days to get the 1998 Volvo turbo to start! Should we call the junkyard? Very frustrated!


why unplug disconnect alarm ---doing that will not let vehicle start --does vehicle turn over and not start --does it turn over --when tutning key to start what happens ---

Jul 27, 2016 | Volvo V70 Cars & Trucks

1 Answer

Check engine light is on , 1990 volvo 760 turbo


check oil ,and coolant levels . Run fault codes to detect which sensors put the light on .

Dec 01, 2013 | 1990 Volvo 740

1 Answer

My friend's 89 Volvo 760 Turbo steering wheel is stuck in the lock mode. What can I do to fix it?


ignition is locked,and will not turn over. do you have any suggestions on what the issue could be?

May 01, 2012 | 1989 Volvo 760

1 Answer

1987 volvo 760 turbo 2.3 fuel injectors not working when srarting?


The fuel injector on your vehicle not starting, When you turn the key on with the ignition on one side of the injector is ignition(+) the other side is controled by the ECM by grounding it.You vehicle is know as LH fuel system so start as the MAF (known as a mass air meter) you also have a thermo time switch. There is also a relay that controls the operating of the injector this is the suppression relay disconnect and reconnect this relay see if this will help you2_26_2012_7_32_53_pm.gif

Feb 26, 2012 | 1987 Volvo 760

1 Answer

My 1990 volvo will not start


1) The fuel pump could be dead.
2) The fuel pump relay (LH models it is located on the driver's side), Regina systems it is located on the coolant expansion tank. Test as follows: turn key to ON and listen for a whirring sound. NG, check the fuse, then check the relay by substitution.
3) Inside the car, the fuel injection relay could also be suspect, but unlikely. Again, check by substitution.

Remember that the fuel pump relay can sometimes fail because of the solder joints making it intermittent. Do not attempt to short across it without the pinouts for the relay - it could destroy the computer outputs along with the computer itself.

You should see a brief stream of gas doing the key test - along with a click of the relay as well with the fuel pump filter disconnected. If all tests good, remove the cover (sedan models) and check the connections in the trunk. On wagon models it is accessed by way of the foldout in the trunk area, then remove the inspection cover, if needed.

Jul 01, 2010 | 1990 Volvo 740

1 Answer

Vent/heat/defrost broken Volvo 760


I have the same car and had the same problem. The inside air intake for the heater system is located above the passenger's feet. An empty plastic bag got sucked in there and kept the door from moving properly. I had to take off a few panels, then one on the vent. Once I removed the bag, no problem.

Oct 13, 2009 | 1990 Volvo 760

1 Answer

Where is the starter on a 1987 volvo 760 gle turbo


you need the key volvo can orde one by the vin

Jul 21, 2009 | 1987 Volvo 760

1 Answer

1989 volvo 740 turbo no start problem car will


Try replacing your fuel pump relay,

Jun 16, 2009 | 1989 Volvo 760

1 Answer

Alarm system


I first bought a 1990 volvo turbo 760. I ABSOLUTELY LOVED THIS VEHICLE! it was rear wheel drive and VERY easy to work on. it was a BLAST to drive and blow 5.0 mustangs off the road with a 4 cyllinder. I loved driving that car so much I bought a 1998 S70 Volvo (kept the 760 model). turns out I paid ALOT MORE for just another toyota camary with a Volvo nameplate. I didnt keep it long. it just wasnt the same. the interior started falling apart from day one.
I know the dissapointment... if it were me I would not spend any money on the alarm system. but if I did I would get the aftermarket version installed.
PLEASE dont let the timing belt break on this car!!!!! it wont be the same as your old one! it will be $4000 damage to the engine if it breaks. change it out early!

Jan 25, 2009 | 1998 Volvo S70

1 Answer

1990 Volvo 740 Turbos wagon


Maybe bad Power Stage/Inquiry:driving down the highway at @ 60mph with 1/4 tank of gas in 100 degree temp inwell kept 84 760 Turbo; car just dies, engine turns over but will notstart] [Response:] Well, when my '84 760 Turbo died for no apparentreason as you describe, it was in the freezing dark, going over Donner Pass.Everything on the car worked except no spark and the engine wouldn't run. It turned out to be the ignition module, which is mounted on the inner driver'sside fender well, above the battery, close to where someone else mentioned theballast resistor was located. It's easy to get to and replace. Ifthat turns out to be the culprit, shop around before buying the new part. Volvo dealers charge several hundred $$$ for this thing, but I found one froman independent parts distributor for about $90 - the identical part madeby BOSCH with the same part number on it.

Oct 06, 2008 | 1990 Volvo 740

Not finding what you are looking for?
1990 Volvo 760 Logo

249 people viewed this question

Ask a Question

Usually answered in minutes!

Top Volvo Experts

yadayada
yadayada

Level 3 Expert

70387 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22041 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6878 Answers

Are you a Volvo Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...