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I just replaced the alternator,and starter, but it seems…

I just replaced the...

I just replaced the alternator,and starter, but it seems like my idle has dropped to 250rpm and car stalled.. getting whiff of fuel.. wondering if idler valve is now bad?

Mechanic's Assistant: Has the vehicle turned into a gas hog? And how does it start -- same as usual?

Starts the same.. no-not a gas hog.. doesit need to "remember" "relearn" idle rate?

Mechanic's Assistant: What is the model/year of your Toyota?

2004 Highlander 3.3 6cyl

Mechanic's Assistant: Are you fixing your Highlander yourself? What have you tried so far?

Not getting any error codes either

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Nt really

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Answered in 5 minutes by:
9/12/2017
Gunvir Singh
Category: Toyota
Satisfied Customers: 2,013
Experience: Master Tech at Kennesaw Auto Tech
Verified

Hello, let me review your request. Please standby.

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Customer reply replied 7 months ago
ok.

Since it happened after alternator replacement, possibly the idle paramters got reset and idle relearn will be needed. There are two ways to do it. One with a compatible scan tool and other is by driving the vehicle at highway speeds for couple of miles with normal load. I will also recommend to check and make sure the throttle plate doesnit have carbon built up as it can delay the idle relaeearn procedure.

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Customer reply replied 7 months ago
my guess is its a relearning issue.. what should the normal idle rate be for this car? Right now its around 250

Once engine warms normal idle(###) ###-####rpm.

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Customer reply replied 7 months ago
thats what I thought.. you think driving it will do it.. I ran it and held the rpm at about 1500 for a few minutes and that didnt seem to make a difference..

Just raising the rpm wont help. It will need to be driven for the computer to relearn idle parameters.Also make sure to check the throttle plate for carbon built up as it can delay the idle relearn procedure.

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Customer reply replied 7 months ago
ok. unlikely its the plate as it ran fine before this happened, but will check

Do you have any other questions?

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Customer reply replied 7 months ago
nope-thans.. Ill check the throttle butterfly for carbon build up and drive the care.. should take care of it!!Thanks

You're welcome and good luck with your vehicle, And please don’t forget to rate my performance in the upper left corner otherwise i don’t get compensated. Thank you and have a blessed day.

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Hello, just checking if any updates?

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Customer reply replied 7 months ago
Hi- well, I cleaned the throttle plate, had carbon.. ran it on freeway and now idling at 770... only casualty was I broke a hose nipple on outside of air cleaner box.. I think its just an air bleed and shouldnt be an issue?

As long as it is not pulling vacuum, should br good.

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Customer reply replied 7 months ago
i dont think it is.. should be fine.. Nope.. I am good to go.. you were a great help

Glad to hear that. Have a great rest of the day and please dont forget to rate my performance in the upper left corner. Thank you.

Gunvir Singh
Category: Toyota
Satisfied Customers: 2,013
Experience: Master Tech at Kennesaw Auto Tech
Verified
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Satisfied Customers: 2,013
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