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2005 Chevy Impala Diagnostic P0440 Code

4 messages,  Last post on Oct 13, 2008 at 8:20 AM

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#1 of 4 2005 Chevy Impala Diagnostic P0455 Code by ffmikem Sep 10, 2008 (6:27 pm)
Hi!   My Check Engine Light is on, and I went to autozone and they said it was code P0455, and they said to try the gas cap. I replaced the gas cap, but the light is still on. Will the light go out by itself after I replaced it, or do I have to use the diagnostic tool to reset it? What else would typically cause this code?   Thanks! Mike Replies to this message: wedebrook (Sep 11, 2008 9:17 am)
#2 of 4 Re: 2005 Chevy Impala Diagnostic P0455 Code [ffmikem] by wedebrook Sep 11, 2008 (9:17 am)
Replying to: ffmikem (Sep 10, 2008 6:27 pm) did you clear the code after installing the new gas cap? it wont just go away by itself until a few cycles.   -another thing that could cause this code is an evap leak. see here: http://www.obd-codes.com/p0455
#3 of 4 No warmth from driver's side fans by stephaniek Sep 22, 2008 (8:44 am)
Hi I have a 2005 Chevy Impala, and just recently (now that it's getting cold out) found that the driver's side does not get warm air if I put the heat on. The passenger side does, but, since it's going to be getting cold here in New England soon, anybody have any suggestions as to a possible easy fix?   Thanks Stephanie Kearns Replies to this message: ridgefolk (Oct 13, 2008 8:20 am)
#4 of 4 Re: No warmth from driver's side fans [stephaniek] by ridgefolk Oct 13, 2008 (8:20 am)
Replying to: stephaniek (Sep 22, 2008 8:44 am) I live in Canada and about a month ago same thing started with my car. Then it would only heat up after about an hour, fan blowing cold then warm, then both sides cold, and 2 days ago the light came on to add coolant. I did and made it home but not sure if the same old 2003 story with Impalas is happening (head gasket) but local mechanic ordered a thermostat but will check to see if it is something worse. Sounds like it is a mfg. defect. I do a lot of highway driving and never had trouble with this car until later this summer. It was warm then so I wasn't too worried, but now that the light came on, it can be very costly.

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