Am I the only one out there? Have you ever listened to your 4.0 V-6 engine (1998 Ranger 4X4, driven easily and dealer maintained) - with the new 5-speed transmission (this may matter, not sure yet) at idle - no load on engine - not in gear, no a/c on? You just might here a noise you don't want to hear - uneven piston knocking? So far, that is the best my dealer can figure out. And, …

Jun 21, 2011 · Some 2004-2005 Rangers equipped with a 4.0L engine and manual transmission, may exhibit a higher than expected idle between shifts, during a coast down with the clutch depressed, or with the transmission in neutral.

Oct 1, 2005 · 4.0L OHV & SOHC V6 Tech - 4.0L OHV and SOHC V6 Ford Ranger engines forum discussion, how-to guides, and technical help.

Aug 20, 2006 · Engine & Drivetrain - How-To: Replace Upper Intake Gaskets 4.0 OHV Engine - Hi, A while back i changed my upper intake gaskets and thought i'd do a write up. This is my first how to and is in it's rough draft stage right now.

Apr 22, 2009 · Ranger-Forums - The Ultimate Ford Ranger Resource Ranger-Forums Technical Engine Forum 4.0L OHV & SOHC V6 Tech Rough Idle 2001 4.0 SOHC

Jan 3, 2006 · Ranger-Forums - The Ultimate Ford Ranger Resource Ranger-Forums Technical Engine Forum 4.0L OHV & SOHC V6 Tech the dreaded rough idle...

Mar 8, 2012 · General Ford Ranger Discussion - getting bad gas mileage on 4.0L - just figured out that I just got 12.41 miles to the gallon on my last fill up. granted i've only driven around town and once or twice gotten on the highway and went 90 for 5 or 10 mins, also i got a flashpaq w/ the performance tune.... but I never got...

Dec 1, 2016 · 4.0L OHV & SOHC V6 Tech - Cylinder #4 misfire - I have a 99 ford ranger 4.0l 4x4 I got rear ended and then my truck started running rough so I put a obd device on it and it said cylinder 4 misfire so then I replaced all spark plugs and wires what else could it be that's causing the misfire and how do I check I don't...

Learn more about Ford Ranger at the Edmunds.com Car Forums! Read real discussions on thousands of topics and get your questions answered.

Nov 19, 2014 · I just had a problem with my tempature gauge not working correctly and my heater was only lukewarm on my 2000 ford ranger 4.0l. The problem was my thermostat not working being open all the time, letting radiator coolant to enter the engine always. The engine never warmed to 195 degrees because of this.