Engine Temp Gauge 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 05-04-2010
Thread Starter
Join Date: May 2010
Location: Beaverton
Posts: 3
Engine Temp Gauge Issue

I have a 99 V6 4.0 Ranger and a couple days ago my Temp Guage started acting up. I would start my truck and it would warm up to normal (Mid temp) and then my heater in the car would go cold, then I would see my engine temp gauge go down to cold, then go almost to the red, then back to Normal. After this the heat would go back on.and everything would be fine for the rest of the ride. I have just replaced my thermostat and this morning it did it again. This happens everytime I first turn on my engine, from sitting for a while.

Any suggestions on what is wrong?
Reply With Quote
Old 05-04-2010
pointhwerp's Avatar
Join Date: Aug 2008
Location: dfw
Posts: 79
possible air in the system, try and bleed it or if possible use a vacuum filler
Reply With Quote
Old 05-04-2010
--weezl--'s Avatar
iTrader: (1)
Join Date: Sep 2009
Location: Calgary AB, Canada
Posts: 3,139
i'd bet 50$ on it being air in the system, or low coolant... my mustang would be like that, would warm up regular speed, get a little heat, and you could start to feel it in the vents... then it would blow ice cold, and my temp would go at a ridiculious rate, up to over heating, for about 2 minutes, then the heat would come back on, and the needle drop to normal almost instantly
Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
starting issue temp light & gauge going crazy BFC84 DOHC - 2.3L Duratec / Mazda L Engines 1 11-05-2013 02:06 PM
Gas Gauge and temp gauge help!! T12icky0 General Technical & Electrical 1 02-14-2013 03:41 PM
Temp Guage Issue rcptown General Technical & Electrical 3 05-04-2010 02:49 PM
Temp gauge problem JohnNetzlof 4.0L OHV & SOHC V6 Tech 2 06-18-2006 07:39 PM

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 01:06 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 Amazon.com and affiliated sites.