Strange cold start issue. - Ranger-Forums - The Ultimate Ford Ranger Resource

4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

LinkBack Thread Tools Search this Thread
Old 10-31-2008
IN2 FX4's Avatar
Thread Starter
Join Date: Feb 2005
Location: Costa Mesa, CA
Posts: 855
Strange cold start issue.

For the last year or two I have noticed that when I do a cold start and run it for less than a minute and shut it off, then cold start it several hours later it will feel like it it not running on all cylinders. It clears within ten seconds and then runs normally. It does not do this if the engine is warmed up when I shut it down. In fact, it normally starts and runs very well.

I am not very concerned about this about this anomaly but wanted to see if anyone else has experienced this. Could this possibly be a symptom of something bad to come? Any ideas of what may cause it?

BTW, cold starts in So Cal are not very cold.
Reply With Quote
Old 10-31-2008
jaycheetwood's Avatar
Join Date: Sep 2008
Location: Ogden, Utah
Posts: 2,218
hahah cold start in california is that like 85 degrees.. haha..


Hmm could be just the fuel lines building pressure under the cold. I know i have a 4.0L and i cold start in -10 F - 30 F normally in winter in Utah and i just idle a little higher for a second to get everything going..
Reply With Quote
Old 10-31-2008
wydopnthrtl's Avatar
iTrader: (2)
Join Date: Dec 2005
Location: SE, Mi
Posts: 2,342
From a tune standpoint the two starts would be the same. Coolant temp & intake temp are pretty much what's driving a "cold start".

So.. if it's stumbling I'd guess that maybe a injector is leaking. Or possibly a fuel filter is too dirty.

Try this next time. Before starting it the second time turn the ignition on for 3 seconds *before* starting the motor. If it starts good.. then chances are it's just the filter. If it does the same thing.. then I'd go looking for a bad injector.

Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Strange AC issue today... Tys 4x4 FTW General Ford Ranger Discussion 5 06-24-2012 07:21 PM
Ranger hard start issue HELP COLD START 1994splash 2.9L & 3.0L V6 Tech 1 06-08-2011 05:27 PM
start up when cold issue?? hozII General Technical & Electrical 3 09-30-2010 09:05 AM
strange noise only on cold start up Tys 4x4 FTW General Ford Ranger Discussion 48 01-06-2010 10:51 AM
Strange "gurgle" noise when cold in 2nd SaucyTabasco Drivetrain Tech 3 01-29-2008 09:30 AM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Pingbacks are Off
Refbacks are Off

All times are GMT -6. The time now is 11:35 PM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.