How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Merc320 Your Own Question
Merc320
Merc320, Technician
Category: Volvo
Satisfied Customers: 335
Experience:  City & guilds pt 1 & 2
22484842
Type Your Volvo Question Here...
Merc320 is online now
A new question is answered every 9 seconds

Cat XC 90 ran fine all day. Let it sit for 2.5 hrs. Went out

Customer Question

Cat XC 90 ran fine all day. Let it sit for 2.5 hrs. Went out and turned the key; nothing happened, no lights or bells.
After getting a jump start, it runs but it has an an idle that revs up and down over and over again message says reduced engine performance. I had a 2hour drive tonight and decided to have it checked out by our mechanic.
It's a 2010 XC 90. What's wrong?
Submitted: 3 months ago.
Category: Volvo
Expert:  Merc320 replied 3 months ago.

Hi my name is ***** ***** am here to assist you.

I would say you have a battery fault.

Have youre mechanic do a drop test on the battery and check the charging rate.

Any fault with the battery or alternator then idle will be rough.