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piotr.wor Samba Member
Joined: May 14, 2018 Posts: 20 Location: NY
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Posted: Fri Jul 02, 2021 5:28 pm Post subject: Strange noise coming from 99 EV near throttle body when off? |
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Ok so this is a strange one. I have a CEL and some misfiring going on when its raining and when i parked the car and turned it off and removed the key I thought i heard the fans turning on. Well the fans are not on. The van has been now sitting for about 8 hours, is cold, and every 10 min something is turning on near the throttle body for about 2 mins and then turns off. Its sounds like some sort of pump or fan internally.
Does anyone have any idea?
Totally stumped on this one.
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Abscate Samba Member
Joined: October 05, 2014 Posts: 22568 Location: NYC/Upstate/ROW
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Posted: Fri Jul 02, 2021 7:00 pm Post subject: Re: Strange noise coming from 99 EV near throttle body when off? |
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It could be evap system testing or the after run coolant pump _________________ .ssS! |
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piotr.wor Samba Member
Joined: May 14, 2018 Posts: 20 Location: NY
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Posted: Fri Jul 02, 2021 7:07 pm Post subject: Re: Strange noise coming from 99 EV near throttle body when off? |
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Abscate wrote: |
It could be evap system testing or the after run coolant pump |
After run coolant pump makes sense after reading about it. Thanks for the tip, Any idea what to do before it drains my battery? |
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Abscate Samba Member
Joined: October 05, 2014 Posts: 22568 Location: NYC/Upstate/ROW
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Posted: Fri Jul 02, 2021 11:20 pm Post subject: Re: Strange noise coming from 99 EV near throttle body when off? |
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piotr.wor wrote: |
Abscate wrote: |
It could be evap system testing or the after run coolant pump |
After run coolant pump makes sense after reading about it. Thanks for the tip, Any idea what to do before it drains my battery? |
Pull the Plug off it for now. If you drive it on the highway, idle it for a minute after a run to perform the cool down function. If it’s just used in the city, no worries _________________ .ssS! |
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piotr.wor Samba Member
Joined: May 14, 2018 Posts: 20 Location: NY
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Posted: Sat Jul 03, 2021 3:09 am Post subject: Re: Strange noise coming from 99 EV near throttle body when off? |
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Abscate wrote: |
piotr.wor wrote: |
Abscate wrote: |
It could be evap system testing or the after run coolant pump |
After run coolant pump makes sense after reading about it. Thanks for the tip, Any idea what to do before it drains my battery? |
Pull the Plug off it for now. If you drive it on the highway, idle it for a minute after a run to perform the cool down function. If it’s just used in the city, no worries |
Thank you! |
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piotr.wor Samba Member
Joined: May 14, 2018 Posts: 20 Location: NY
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Posted: Sat Jul 03, 2021 4:23 am Post subject: Re: Strange noise coming from 99 EV near throttle body when off? |
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Abscate wrote: |
piotr.wor wrote: |
Abscate wrote: |
It could be evap system testing or the after run coolant pump |
After run coolant pump makes sense after reading about it. Thanks for the tip, Any idea what to do before it drains my battery? |
Pull the Plug off it for now. If you drive it on the highway, idle it for a minute after a run to perform the cool down function. If it’s just used in the city, no worries |
I pulled the plug off the plug by the heater core / firewall and its still running. Its actually running non stop now. Maybe its the Evap testing you mentioned ?I disconnected the battery or now but stumped again.... any ideas? |
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Abscate Samba Member
Joined: October 05, 2014 Posts: 22568 Location: NYC/Upstate/ROW
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Posted: Sat Jul 03, 2021 4:40 am Post subject: Re: Strange noise coming from 99 EV near throttle body when off? |
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I think that’s the sensor wire. Try pulling off the plug at the pump
I use a hose to track down the source of noises, put one end in your ear and use it to track down what’s running.
I think the evap pump is under the car, maybe it’s the air pump?
Are you in the Hudson valley? _________________ .ssS! |
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piotr.wor Samba Member
Joined: May 14, 2018 Posts: 20 Location: NY
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Posted: Sat Jul 03, 2021 6:23 am Post subject: Re: Strange noise coming from 99 EV near throttle body when off? |
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Abscate wrote: |
I think that’s the sensor wire. Try pulling off the plug at the pump
I use a hose to track down the source of noises, put one end in your ear and use it to track down what’s running.
I think the evap pump is under the car, maybe it’s the air pump?
Are you in the Hudson valley? |
Thats a great idea. Thank you.
I am. I live in Woodstock. |
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