Rpms are going crazy?!?!? - Taurus Car Club of America : Ford Taurus Forum
Reply
 
LinkBack Thread Tools
post #1 of 15 (permalink) Old 01-15-2013, 01:34 PM Thread Starter
Junior Member
 
Join Date: Apr 2012
Chapter: Northeast
Posts: 39
Rep Power: 0
 
Trader Score: 0 reviews
Rpms are going crazy?!?!?

The past few months my RPMS have been going crazy, spiking between 200 and 1000 (and you can hear the revving when this happens to) when I am coasting, braking, or driving at a low speed, since I have a hard time explaining things, here is a video of it 2003 taurus rpm issue - YouTube any ideas what could be causing this?
dogcmp6 is offline  
Sponsored Links
Advertisement
 
post #2 of 15 (permalink) Old 01-15-2013, 02:13 PM
Technical Advisor
 
behlinla's Avatar
 
Join Date: Dec 2007
Location: Wisconsin
Chapter: Midwest
Posts: 7,539
Rep Power: 84
      
Trader Score: 0 reviews
Are the engine RPMs actually changing with the tachometer? I can't really hear the engine in your video (microphone covered?).

If the engine sounds like it's running steady then I would suspect a crankshaft sensor.
behlinla is offline  
post #3 of 15 (permalink) Old 01-15-2013, 02:18 PM Thread Starter
Junior Member
 
Join Date: Apr 2012
Chapter: Northeast
Posts: 39
Rep Power: 0
 
Trader Score: 0 reviews
Quote:
Originally Posted by behlinla View Post
Are the engine RPMs actually changing with the tachometer? I can't really hear the engine in your video (microphone covered?).

If the engine sounds like it's running steady then I would suspect a crankshaft sensor.
Oops, I meant to add that I can hear the engine reving with the tach
dogcmp6 is offline  
post #4 of 15 (permalink) Old 01-15-2013, 03:25 PM
Technical Advisor
 
behlinla's Avatar
 
Join Date: Dec 2007
Location: Wisconsin
Chapter: Midwest
Posts: 7,539
Rep Power: 84
      
Trader Score: 0 reviews
Okay, then it's probably an IAC problem. Take it off (two bolts, save the gasket) and see if it looks real dirty.
behlinla is offline  
post #5 of 15 (permalink) Old 01-17-2013, 01:54 PM Thread Starter
Junior Member
 
Join Date: Apr 2012
Chapter: Northeast
Posts: 39
Rep Power: 0
 
Trader Score: 0 reviews
Pulled off my old IAC, there was no gasket, and the inside was dirty as all hell, bought a new one, popped it on with the gasket in 5 minutes, drove around for an hour, and no more problems!!!!! im so happy
dogcmp6 is offline  
post #6 of 15 (permalink) Old 01-17-2013, 04:15 PM
Technical Advisor
 
behlinla's Avatar
 
Join Date: Dec 2007
Location: Wisconsin
Chapter: Midwest
Posts: 7,539
Rep Power: 84
      
Trader Score: 0 reviews
Congrats, glad it's fixed.
behlinla is offline  
post #7 of 15 (permalink) Old 01-17-2013, 11:24 PM Thread Starter
Junior Member
 
Join Date: Apr 2012
Chapter: Northeast
Posts: 39
Rep Power: 0
 
Trader Score: 0 reviews
Well, my rpms are no longer erratic while I am coasting, but now when I am at a stop, the rpms keep moving between 6 and 900
dogcmp6 is offline  
post #8 of 15 (permalink) Old 01-17-2013, 11:32 PM
Technical Advisor
 
behlinla's Avatar
 
Join Date: Dec 2007
Location: Wisconsin
Chapter: Midwest
Posts: 7,539
Rep Power: 84
      
Trader Score: 0 reviews
You should check for vacuum leaks.
behlinla is offline  
post #9 of 15 (permalink) Old 01-18-2013, 12:42 AM Thread Starter
Junior Member
 
Join Date: Apr 2012
Chapter: Northeast
Posts: 39
Rep Power: 0
 
Trader Score: 0 reviews
There was not a gasket when I removed the old IAC, and I installed the new one with a diamond shaped gasket that was in the box, would this have anything to do with it?
dogcmp6 is offline  
post #10 of 15 (permalink) Old 01-18-2013, 09:57 AM
Technical Advisor
 
behlinla's Avatar
 
Join Date: Dec 2007
Location: Wisconsin
Chapter: Midwest
Posts: 7,539
Rep Power: 84
      
Trader Score: 0 reviews
If you used the ∞ shaped gasket and your throttle body don't have a groove for it to fit in it's going to leak. If you have a flat surface, then you need a flat gasket like this:

behlinla is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Taurus Car Club of America : Ford Taurus Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome