SOURCE: 1991 Volvo 740GL Speedometer
I remove two panel underneath the steering column. The first panel is removed using a 10 mm socket. The second panel is removed using a torx socket (can't remember the size). Removing these two panels gives you room to get to the clip on speedomter. Looking at the speedometer, you should see two rectangular holes on each side of the speedometer cover. I use a awl to push in the clip (you could use a screwdriver). Looking underneath the dash, you should be able to see the clip you are pushing on with the awl. I take my 2nd awl and put it behind the clip. I get the left side to release. One the speedometer cover releases, you can see the speedometer. You will see the 4 torx screws (t20) and two smaller clips holding the speedometer. All that is left is the wiring. (I take a sharpie pen and mark one of my wire locations on the speedometer. I am not sure what it does. It is a single wire.)
SOURCE: shakes and vibration
i had the alignment done about six months ago at the dealership. Would they have been able to align the car if something was bad? Not sure how they deemed the new tires bad, but they said they moved the tires from left to right and front to back and could control the shimmy and shake. this has went on for about a year. I dont believe the new tires the first time were bad, i believe the rim was bent. I dont know what to do. These tires have about 10000 miles on them, have been balanced twice, a rim was replaced due to them saying it was bent, but yet, the vibration starts at about 55 and gets worse as you gain speed. Can even feel it in the passenger seat in the front as well. Steering wheel shakes. You can actually see your hand shake while you are driving it, but then at times, it seems to go away and start again. Thanks for any suggestions.
SOURCE: speedometer senser is jumping erraticaly
I had an Audi doing exactly the same. What happened was that through time, especially if the vehicle gets older with a higher milage, dust and dirt gets into the speedometer itself and causes all the small gears to get sticky. I opened it and lubricated all the small moving parts inside and all were ok. Try it before buying a new speedometer. (I'm talking about the speedometer clock itself) Hope this info might help.
Akirfa
SOURCE: camshaft postioning sensor
On 1995 and later models the CKP is located at the rear of the engine near the transaxle bell housing.
SOURCE: speed sensor
It is in the transmission case. It is held in place by a single bolt on a Y clamp, has 2 wires coming out of it.
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