Volvo 850 Made from 1993 to 1997, this Volvo line was available in both a wagon and a sedan, both with were graced with several trim levels.

Clunk - then P0500 code

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  #1  
Old 02-04-2010, 05:53 PM
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Default Clunk - then P0500 code

Hey Guys. Today while I was crusin, I heard a lound clunk on the drivers side in the front and a couple of min later my engine light came on and the shift arrow started blinking. I read the code right away and come up with P0500. I cleared the code and drove for about 20 min and it came back. Now Im not sure, but I night have hit a small chuck of ice in the road and shot it up under the car. Also, I had a problem with my ABS mod, but I unplugged all the fuses months ago as Im not a real fan of the older ABS system. There seems to be no problem with changing gears that I can notice. If it is just the sensor, where can I find it so I can get it on the hoist this weekend and check for broken or frayed wires.

Thanks in advance.
 
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Old 02-05-2010, 09:27 PM
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That is a tranny code?
 
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Old 02-06-2010, 10:12 AM
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There was no other code, unless it does not come up on the OBII reader and I have to get it manually?
 
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Old 02-06-2010, 10:14 AM
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The code only comes back if I go faster than 90km, will stay away all day till I do that.
 
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Old 02-06-2010, 11:07 AM
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Just checked the codes manually and nothing in A1. I might have forgot to mention that the up arrow flashing goes away when i clear the code P0500 with the OBDII reader.
 
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Old 02-06-2010, 12:56 PM
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I am trying to find a crossover to a volvo code.
 
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Old 02-06-2010, 01:36 PM
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Thanks Tech, I really dont like the sound of Tranny Codes.....usually means lots of money.
 
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Old 02-06-2010, 03:01 PM
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Also, The fuel gauge is up and down, one min it works, next it doesnt. Thought this might have to do with the very cold weather and a sticky float, but after reading some other threads, I thought Id mention it.
 
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Old 02-06-2010, 04:56 PM
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You might have an issue in the speedo assembly.
 
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Old 02-06-2010, 05:21 PM
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Ok, this speedo assembly....its new to me...what is it. Would make sense that the gas guage and the KM to Empty on the LCD is going wacko. But can this assembly cause the codes to come up?
 
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Old 02-06-2010, 05:24 PM
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Im still not happy with the loud Clunk somewhere by the front left tire I heard. Tomorrow I can put on the hoist and check the following: ABS Sensor and Front end. I will take out the speed sensor ontop of the tranny and clean the connectors.

Do you have anything else I should look for?
 
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Old 02-06-2010, 05:29 PM
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Is the speed sensor known as the Speedometer Sensor on FCP

http://www.fcpgroton.com/product-exe...ategory_id/116
 

Last edited by Chebucto; 02-06-2010 at 05:34 PM.
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Old 02-06-2010, 05:46 PM
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Yes on the 94 and 95's it is located on the backside of the tranny.
I was talking about the entire speedometer assembly. Meaning the entire cluster assembly. Yes that will throw a code if signal is broke from the assembly.
 
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Old 02-06-2010, 06:00 PM
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OK, so since I dont have any physical signs of a problem (changing gears) How do you suspect I should proceed. Sensors usually just die and the code would be there right away after I clear it. The code only comes back if I drive 90km or more. Or will I just have to replace the sensor to determine that its the dash.
 
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Old 02-06-2010, 07:16 PM
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Hard to say. I would see if you can find either a used sensor or cluster and try it.
 
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Old 02-07-2010, 10:38 AM
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Got the code again today, so instead of using the OBII reader, I read them manually. Got
2-3-2 no vehicle speed sensor signal. So Im gonna take a chance on replacing it and see if it comes back.
 
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Old 02-21-2010, 07:10 AM
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Hey my car just started the same deal! I have a 96 850 turbo. I never had any prob with the trans till last week. I was driving in the snow and it was kinda wet (which makes me think I shorted something but I don't know what) and all off a sudden it starts slipping drastically in 3rd or 4th (its an auto) and the transmission light started flashing. I got to where I was going and parked it. Start it up later and no problems, no lights. Now it holds gears too long if you get into it. When cold, it takes a lot of effort to get it to shift into 3rd.
 
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