Question about 1989 Volvo 740

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No speedometer, gas gauge, temperature gauge, and

I just bought a 1989 Volvo GL. I like the car, but the speedometer, gas gauge, and temperature gauge are not working (tachometer is fine), and the car will not shift into 4th gear. Are any of these problems related? Would I be capable of fixing any of these things myself?

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Check your fues box were it say gagues

Posted on Jul 01, 2009


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My question Why aren't my speedometer, gas gauge, temp, etc not working refers to a 1988 Volvo GLC.

Either you have a blown fuse, or the ground connection for your dash gauge cluster is corroded or broken.

May 18, 2015 | Volvo Cars & Trucks

1 Answer

1989 volvo 240 gl 4 cyl put in gear car cuts out like its not getting fuel

Check you in tank low pressure fuel pump and over all fuel pressure.

Sep 25, 2014 | 1989 Volvo 240

1 Answer

Why does the the odometer on my 1997 volvo 850 not work but the speedometer does? any ideas

This is a common problem with 850s. The speedometer is driven electrically, while the odometer is mechanical.

There's a tiny little gear inside the odometer that runs it from a motor; it's no longer tied directly to a speedometer cable like older models. What happens is the gear gets old and brittle and loses teeth, at which point it can no longer turn the odometer.

My wife's '96 850 had the same issue when I got it, and a little internet research turned up the answer above. There are companies that make replacement gears you can buy fairly cheaply, but it does require a fair amount of mechanical aptitude to pull the instrument panel and disassemble the speedometer assembly.

One note of caution that I learned the hard way: you have to take the front cover off the instrument panel, exposing all of the gauges. Be very careful not to disturb the position of those little needles; I ended up messing up the gas gauge, speedometer and temperature gauge, and it took a lot of trial and error to get them put back in so they showed the right readings.

If I recall correctly, I found instructions for doing the gear replacement online, but it's been so long that I don't have the web page(s) I found any more. A lot of times the manufacturer of the replacement gears have instructions on their web sites.

IPD USA sells them and has instructions.

850 Odometer Gear

Jun 18, 2014 | 1997 Volvo 850

1 Answer

Gas in oil

Generally speaking, there are two ways for gas to get into the engine oil.
A leaking fuel injector, or a faulty fuel pressure regulator.

Apr 28, 2013 | Volvo 740 Cars & Trucks

1 Answer

1989 volvo gl fuel gauge not working properly

Your sending unit in the tank is bad and needs to be replaced. There is a short in it. That is the only thing that can go wrong with it. There is probley a broken wire on it so it wont read right.

Dec 10, 2012 | 1989 Volvo 240

1 Answer

My temperature gauge and my fuel gauge arent working and the fuse is is good .... also how hard is it to replace the speedometer cable ?

On replacing the speedometer cable, on a scale of 1 to 10, probably 3 or 4.
Hooking to the transmission, " baby play ", connecting the other end to the speedometer, well that represents the 4.

Jan 25, 2011 | 1989 Ford Ranger

1 Answer

Seems like when car is hot it 1990 740 GL won't start. Morning and evening yes. Have changed to new battery cleaned all connections etc. Is there a realy or switch that is heat realted

Check the connectors to the temperaure sensor, I think it has been crossed with the knock sensor. I had an earlier model volvo with same problem it was like that since I bought it. I found out somebody crossed the temperature sensor with the knock sensor. It took me a while to figure it out. I had to use an schematic diagram.

Jun 30, 2009 | 1989 Volvo 740

1 Answer

1989 volvo gl 740 speedometer and odometer

Your problem is NOT a fuse. The speedometer receives an electronic signal from an analogue transmitter mounted in the rear differential. It's the little button in the rear diff with two wires attached to it. Check to see if the wiring is chaffed or broken. If not, then it's probably the transmitter. A competent mechanic should be able to replace one for less than 200.00, parts and labor. If this does not fix it, then the problem is in the head, which can be expensive. You might get a used head if you can get a 90 day guarrantee on the part from the salvage company.

Good Luck!

Oct 09, 2008 | 1989 Volvo 740

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