Weird cold idle - Ford Powerstroke Diesel Forum
 
LinkBack Thread Tools Display Modes
post #1 of 4 Old 11-30-2012, 08:54 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Nov 2010
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Weird cold idle

I started having an issue with my idle when the truck is cold. It'll start just fine and idle just fine. I usually at least let the glow plugs go completely off before I touch the gas pedal. Well once I see the alternator gauge go up to normal range, and it's idling fine, it will start doing doing this weird fluctuation of about 100 rpms. At the same time the alternator gauge will start fluctuating too. The battery light does not come on. I installed a 215amp alternator a little bit ago. Other mods (back this summer): IDM mod and the 10k mod (c00nhunterjoe way). If the truck is really cold, once the glow plugs are off, I'll give it some gas and let it sit at like 1200 rpms for a few minutes to help it warm up more. Sometimes even while doing this I can hear a change in the sound of the engine and I can watch the alternator gauge fluctuate (the rpms don't fluctuate much when I'm hi-idling it). Hopefully my description makes sense. Any help will be appreciated. Thanks

Lee
warrior_84 is offline  
Sponsored Links
Advertisement
 
post #2 of 4 Old 11-30-2012, 10:58 PM
Powerstroke.org Fanatic
 
jwatkins's Avatar
 
Join Date: May 2010
Location: eastern oregon
Posts: 109
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
That is your glow plugs. The sound you are hearing is the relay pulling a lot of amps from the alternator. It's perfectly normal. You glow plugs will cycle on and off for a little bit to make sure all cylinders are firing.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

B] 97 ford f-350 Powerstroke[/B]
d-60, 02' zf-6 tranny, 6637,FPR Shim, Custom Dual 5" Exhaust and 3" dp, TS six position, Devils Own water/meth, DIY Exhaust brake, Pro-tech headache rack with Peterson LEDs, home made front and rear bumper, DIY leveling kit, SD steering column pod, Isspro EGT and Boost, Home made OHC.
jwatkins is offline  
post #3 of 4 Old 12-01-2012, 02:05 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Nov 2010
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Oh wow... It was that dumb of a question?! Thanks for the info haha. Sorry
warrior_84 is offline  
post #4 of 4 Old 12-01-2012, 02:14 PM
Compression Ignition Addict
 
kinnisoj's Avatar
 
Join Date: Jun 2012
Location: Trinidad Colorado ,USA
Posts: 6,085
Thanks: 136
Thanked 197 Times in 192 Posts
Mentioned: 0 Post(s)
Quoted: 2 Post(s)
Feedback Score: 0 reviews
Hey dont be sorry I learned from your question. Thats what is great about this site. Never know what your gonna learn.

BPD OIL COOLER W/COLD WEATHER PACK & BPD oil bypass amsiol filter
BPD WATER PUMP, RADIATOR+ EGR.ARP STUDS
,edge turbo timer
5" TB DIAMOND EYE EXH
ATLAS 40
TITLE IN HAND...
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
kinnisoj is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel 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
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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