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Old 03-07-2011, 07:28 PM   #1
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Rpm drop

Alright iv had my stang for a while and havent really had any major issues. The only thing that it does and i cant understand why is when im driving and come to a stop the rpm drops to the point where it almost turns off. Its never actually turned off untill last night when i was stoped at a light. So any ideas on why its doing that and how do i go bout fixing it.
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Old 03-07-2011, 07:31 PM   #2
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TPS?
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Old 03-07-2011, 07:36 PM   #3
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[QUOTE="Gster"]TPS?[/QUOTE
???
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Old 03-07-2011, 07:39 PM   #4
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Throttle position sensor
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Old 03-07-2011, 07:41 PM   #5
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Oh you know how do i check that
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Old 03-07-2011, 07:43 PM   #6
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Mine fluctuated like that til I seafoamed it. All fixed for 5 bucks

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Old 03-07-2011, 07:49 PM   #7
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You can get a voltage meter and check it but there not expensive and really easy to replace. If it doesn't work your only out 20 bucks, but tps's go out quite often.
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Old 03-07-2011, 07:53 PM   #8
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Quote:
Originally Posted by Everett
Mine fluctuated like that til I seafoamed it. All fixed for 5 bucks

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Not many people live in a place where it gets 100 below zero, so everybody dosn't need sea foam. Lol.
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Old 03-07-2011, 07:54 PM   #9
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Quote:
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Not many people live in a place where it gets 100 below zero, so everybody dosn't need sea foam. Lol.
Seafoam cleans carbon and sludge. Great stuff...and it's only 100 below 0 for 6 months a year. It gets warm for a little while. A couple weeks in august

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Old 03-07-2011, 08:04 PM   #10
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Idle air control. Pull it and clean it or
Replace it. Mine was doing the same thing this weekend.
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Old 03-07-2011, 08:22 PM   #11
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Re: Rpm drop

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Originally Posted by doubletap4311 View Post
Idle air control. Pull it and clean in or
Replace it. Mine was doing the same thing this weekend.
+1
Just replaced the one on my Vert for the same problem. Good as new now.
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Old 03-07-2011, 10:48 PM   #12
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What doubletap said do it and it will come back to live again. Common problem on Fords is carbon build up in idle air control valve.
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Old 03-08-2011, 10:10 AM   #13
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Re: Rpm drop

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Originally Posted by Gster View Post
Not many people live in a place where it gets 100 below zero, so everybody dosn't need sea foam. Lol.
Anybody could use a seafoam treatment from time to time. He is recommending cleaning the IAC/Throttle Body/TPS with a seafoam treatment as well as the rest of the Engine. This can only help.
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What doubletap said do it and it will come back to live again. Common problem on Fords is carbon build up in idle air control valve.
This. IACs tend to get dirty and clogged. If that doesn't fix it you may have a problem with the valve.
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Old 03-08-2011, 01:14 PM   #14
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Re: Rpm drop

as said the MAF may need cleaning but its probably the IAC (idle bypass valve)
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