2000 s80 car starts to lurch forward when a/c is on

jfcayman · Post by **jfcayman** » 27 Mar 2004, 12:53

I live in a town with no dealer to look at my volvo and I just bought it 4 months ago. Please help if possible. When I turn the a/c on in the car my engine will lurch forward or the idle will increase when sitting still.It is getting really old and there is someone to fix it in town but I don't want to pay a high bill if I don't have to. Please let me know if you have any solutions. Thanks, Jeff

jfcayman · Post by **jfcayman** » 27 Mar 2004, 13:00

sorry was not registered when i posted message

Guest · Post by **Guest** » 31 Mar 2004, 10:23

jfcayman wrote:I live in a town with no dealer to look at my volvo and I just bought it 4 months ago. Please help if possible. When I turn the a/c on in the car my engine will lurch forward or the idle will increase when sitting still.It is getting really old and there is someone to fix it in town but I don't want to pay a high bill if I don't have to. Please let me know if you have any solutions. Thanks, Jeff

I had the exact same problem on my 2000 S80, I took it to the dealer and they reloaded the software on the ECU, that was all to it. It had nothing to do with tuning the engine or else. I guess you better talk to a Volvo dealer as I am not sure everynone will have the latest 2000 S80 softwware upgrade.

joseb · Post by **joseb** » 31 Mar 2004, 10:27

Anonymous wrote:
jfcayman wrote:I live in a town with no dealer to look at my volvo and I just bought it 4 months ago. Please help if possible. When I turn the a/c on in the car my engine will lurch forward or the idle will increase when sitting still.It is getting really old and there is someone to fix it in town but I don't want to pay a high bill if I don't have to. Please let me know if you have any solutions. Thanks, Jeff

I had the exact same problem on my 2000 S80, I took it to the dealer and they reloaded the software on the ECU, that was all to it. It had nothing to do with tuning the engine or else. I guess you better talk to a Volvo dealer as I am not sure everynone will have the latest 2000 S80 softwware upgrade.

Sorry, I had not logged in

petershen1984 · Post by **petershen1984** » 31 Mar 2004, 23:49

"software upgrade..." I cannot conceive of a car powered by a PC Operating system that needs upgrades every few years or so

...

joseb · Post by **joseb** » 01 Apr 2004, 07:55

Well, I am not exactly sure hwo they called it, I know it had to do with upgrading a bug on the control unit. It did fix the problem and I am back to normal