Hi All,


Need some help to troubleshoot starting or electrical problem for a 2004 Volvo S80 non turbo. Car will not start. I have to use my manual key to unlock door. When I turn the key on to start the car nothing happens. But I noticed the interior lights are dim, windows will not work, keyless entry will not respond, sometimes the radio turned on, windshield wipers will sometime turn on, dash board fades out. The only way I know how to fix the problem is to disconnect the battery for about 30 seconds. Afterwards, everything seems to work fine for a week or more, but this has been happening for about two years now. No codes are recorded. I did purchase a new battery (2 years ago) because of this issue which did not help any.



Any thoughts????

 

hmm i m thinking of few things:
- bad solenoid or starter.
-loose or corroded battery cable
-bad ignition switch
-u have a voltmeter or test light?If so then on the starter motor, there should be a smaller gauge wire for the solenoid. When you turn the key to start the car, it should receive battery voltage. You need to check to see if it is getting battery voltage.
- or could be bad/damaged CEM

 

Sounds like it's not charging the battery sufficiently. If the battery change did not help (you went like this for 2 more years?!?!) I'd check the alternator the the cables.

 

Great advice!! I do have a volt meter. I will check the voltages on the starter motor and look for corrosion there.



Battery terminals look very new, best I have ever seen in a car.


Question:
1.) Should I test now or wait until it doesn’t start?
2.) Would it be okay to replace the solenoid now as a precaution or just wasting money?
3.) If I connect my volt meter to battery what should it read with car on/off? Or does not matter?

 

I purchased a new starter motor which includes solenoid from Advanced. Going to install it this weekend. Hoping this will solve my issue.....

 

 

Replaced start motor and solenoid on Saturday. Noticed that the car starts faster than before. This week will be the test to see if solved my problem. I attached a few pictures of the replacem







ent.

 

looks like good improvement. On that 2nd picture is that a throttle body? it looks clean. What did you remove to access the body

 

Yes, you are correct. The second picture is of throttle body. I figured I would clean it while I had it exposed.

Here is a general summary of the starter motor replacement:

1.) Disconnect the negative battery cable.
2.) Removed air cleaner / air box and air box hoses.
3.) Removed the nut holding the two red power cables.
4.) Removed the third wire underneath the power cables.
5.) Removed the two outer start nuts (this was holding the wiring harness and water hose bracket) I think these were 1/2?
6.) Removed the two inner starter bolts (14MM)
7.) Pulled the start motor out.

I took this opportunity to clean the butterfly valve (surrendering areas) and air box. I also replaced the air cleaner.

I then followed the same sequence in reverse for installation.

 

I wanted to post a final conclusion to my issue. Replacing the starter motor seemed to have fixed it!!! I have been running the car for about two weeks now without any issues. Thank you for responding to my post!!!!!

 

good to know it worked..

 

It happened again. Turned the key and was unable to start the car. This time I pulled out all fuses one by one and discovered #32. After pulling #32 (central electronic module) and putting it back in the car started. So, should I replace this module? Thoughts?

Thanks!!!!