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  #1  
Old 10-13-2007, 02:34 AM
 
Join Date: Oct 2007
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Default XC70 reduced engine performance

XC70 (2004) on way to 100,000km service, warning light came up "reduced engine performence". The XC70 would not accelarate and came to a stop. I switched off engine and restarted, everything normal. Had service at 99500km, reported problem. After service, traveling at 120km/h, same thing happened. Warning light "reduced engine performance" engine very rough, slows down to stop. Switched off and restarted, everything ok. What is the problem?
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  #2  
Old 10-13-2007, 10:02 AM
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Default RE: XC70 reduced engine performance

Sounds to me like you have experienced the dreaded ETM failure. This is a known issue on earlier models (01-03) but this is the first time I have heard of it on a 04. I could explain the issue but it would be much easier if you did a search for 'ETM" or "ETM failure" you will learn all you need to know. In short, a trip to the dealer for an ETM replacement is likely needed.

Glenn
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  #3  
Old 10-20-2008, 09:17 AM
 
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Default RE: XC70 reduced engine performance

The same exact thing happened to my 04 XC70 last Thursday while my wife was driving. She turned the car off and drove to a parking lot to park the car until I got there. I drove it to the mechanic without a problem and they just called and told me that they couldn't find anything wrong with it. She is afraid it will happen again so she doesn't want to drive the car. Should I just go ahead and replace the ETM? And does anyone know how much that will run me or can I do it myself?
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Old 10-20-2008, 09:19 AM
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Default RE: XC70 reduced engine performance

Does your mechanic have the proper scanner to read the codes? Volvo are really funny with codes most generic scanners cannot read them.
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  #5  
Old 10-20-2008, 09:24 AM
 
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Default RE: XC70 reduced engine performance

Yeah the mechanic said there were not any codes to read. The Mrs. did say that he message center said reduced engine performance, like she needed to be told that after the car wouldn't accelerate.
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Old 10-20-2008, 09:40 AM
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Default RE: XC70 reduced engine performance

Try this it will not give you codes but it will only tell you if there is codes stored and in what computers.

Press and hold the read button on the end of the turn signal. While holding the button press and release the rear foglight switch twice fast. The display window will say checking for DTC. Then it will say DTC's stored. Press the read button to go through the modules and see which ones have codes. If the ECM has codes stored then his scanner cannot read them.
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Old 10-20-2008, 11:46 AM
 
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Default RE: XC70 reduced engine performance

Thanks for the info. I'll try that when I get home tomorrow.
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Old 10-20-2008, 12:03 PM
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Default RE: XC70 reduced engine performance

OK let us know how you make out.
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  #9  
Old 10-21-2008, 08:49 AM
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Default RE: XC70 reduced engine performance

Sounds like the ETM issue is also cropping up on some 04 models *sigh*
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  #10  
Old 10-21-2008, 11:45 AM
 
Join Date: Oct 2008
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Default RE: XC70 reduced engine performance

I apologize for the confusion. I have an 03 not 04 like I stated earlier. I got confused somewhere.

Quote:
Press and hold the read button on the end of the turn signal. While holding the button press and release the rear foglight switch twice fast. The display window will say checking for DTC. Then it will say DTC's stored. Press the read button to go through the modules and see which ones have codes. If the ECM has codes stored then his scanner cannot read them.
OK I did this and got the following. One thing is when it said checking, I waited a while and nothing happened so I pressed the read button again. Was I supposed to wait for something to happen?

DTCS IN VEHICLE
BCM DTC SET
SAS CHECKING
SRS READY
TCM CHECKING
ECM CHECKING
DEM READY
AUM DTC SET
CEM DTC SET
DIM READY
DDM DTC SET
CCM CHECKING
PDM DTC SET
PSM CHECKING
REM CHECKING
SWM READY
UEM CHECKING

YOU HAVE 0 MESSAGES

OK it's all Greek to me.
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Old 10-21-2008, 11:45 AM
 
 
 
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Tags
2002, 2006, engine, light, messages, performance, reduce, reduced, s40, s80, v50, v70, volvo, warning, xc90


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