courtesy of Bob, The Auto Answer Man
I have a 2000 Mustang GT and just got it back from the dealer after they worked on it for two weeks. They replaced the IAC valve, but I noticed it was idling erratically with the A/C on yesterday. I didn't notice it while driving. However, when stopped at lights, the engine would drop from the normal 800 RPMs to about 500 and then surge to 1200 when it started to stall. Any idea what the problem is?
It's possible that either:
1) There is a vacuum leak.
2) The map sensor is bad.
3) The IAC is bad.
4) They did not give the car a sufficient learning cycle to learn how to operate the new IAC.
Bob, The Auto Answer Man
Have a car care question? Visit our automotive center and see if we've already answered it or a similar question.
Take the Next Step
- Reduce the cost of your gasoline with a 'gas card'. You can compare them here.
Also in Home
- Tricks to painting interior trim
- Affordable chimney care
- Do-it-yourself brick walkways
- The pros and cons of having a homeowners association
- 5 places to find free firewood
- Homemade detergent for HE washing machines
- 5 best budget decorating tips under $20
- How to make garden stones
- 5 ways your house can make you go broke
- 5 simple and affordable luxuries for your home
- Does staging really raise a home's price?
- 5 home renovation can raise your insurance rate -- or lead to discounts
- The right way and wrong way to pay down your mortgage
- 6 cheap, effective home security solutions
- 3 ways (and 1 reason) to refinance a HELOC
- 6 home projects that don't pay for themselves
- Should I refinance my home equity line?
- Find the best mortgage rates in your area
- 3 ways to use a mortgage calculator
- Mortgage calculator: Calculate your payment and more
- Home equity calculator: HELOC vs. line of credit
- Mortgage refinance break-even calculator
- How much money can I borrow for a mortgage?