Ford Ranger 4.0L Rough Idle/ Stalling Issue Fix

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[raytyler]

I can help clarify a little.

That engine is the 4.0 OHV used from 1990-2000 in Rangers. 1991-2000 Explorers. The 4.0 SOHC came after that. It was used from 2001-2011 in Rangers and 1997-2010 Explorers.

That line underneath the throttle body isn’t the “PCV elbow” that is the vacuum line for the EVAP system. The PCV elbow is on the driver side valve cover at the back, it comes up and makes 2x 90 degree turns into the intake manifold to vent the crank case pressure. Hence the “elbow”

Great video, a lot of people overlook that item. I missed that when I swapped my motor and it took me a while to hunt her down. Nice work man.

[Bobby]

Man I believe you just solved my problem. My truck was had bad idling. After watching your video I looked under the hood and sure enough my line was disconnected. Thanks alot.. you saved me some money ❗️❗️❗️

[kcaa]

Oh, that's funny. My 96 just out of the blue started running rough at idle, throwing P0171 and P0174 codes. Looking at all sorts of potential reasons for it, and I'm assuming I need to do a valve cover/valve cover gasket and maybe intake manifold gaskets too. Getting all depressed at all the work I need to do. Then I find this video. No way. Couldn't be that simple. Go out and look at my truck and I'll be darned if that same stupid hose isn't popped off looking at me. Youtube and Hitchin Mitch for the win!

[kyaksich]

Ran outside as soon as you showed the fault. Exactly what was wrong. You are

[williamblake]

Saved me a lot of problems. found hose rotted, took small piece of windshield washer hose and fixed it, thanks again.

[billkrause]

I have a 2002 Ford Ranger XLT 4.0 L and it has 174, 000 miles on it. It just purrs, and I'm thankful its lasting for my retirement years. I used the intake valve cleaner spray a couple times, spraying it into the throttle body as per instructions. and I use Seafoam Fuel Additive in the gas tank also I followed the instructions on their website for Seafoam in the oil crankcase. First time I used it in the oil crankcase I added about a one oz. per quart of oil capacity and drove 50 mile before the oil change and again added the same amount into the clean oil crankcase. The engine is very quiet and performs very well. Now. I'll may do this about once a year. I only do two oil changes a year being I only drive it 3000 miles a year. The truck still looks and run like the day I bought it in 2002.

[DennisSnyderDrums]

This is exactly what was wrong with my truck. I installed a new EGR valve. During the installation I moved the hose that connects to the plastic elbow you mentioned. That wiggle was enough to damage the small rubber hose causing my check engine light to come on with codes P0174 and P0171. I replaced that little rubber hose and the engine is running smoother than when I bought it. Thank you.

[kevinstamey]

I love my 1991 ford ranger 4.0 got it for only $250 an it’s runs like a champ. Except for this issue I was having. Thank you so much for this video

[tommythomas]

Hey. I just saw your video! Awesome job! I have a hesitation/rough idle in my 1990 Ford Ranger w/4.0L. Over the past few days, I've been seeing if there's a pattern to it. It won't do it on an overnight cold start. It's only happens when I drive it probably 20-30 minutes or more, shut it off, and when I come back out to start it from wherever store I went in, it will really hesitate. Today, I went to get something to eat. When I came back out, it majorly hesitated and then shut off. I started it again and had to keep my foot on the gas to keep it from shutting off again. Once I gave it gas and then left the restaurant, there wasn't anymore noticeable hesitation. I stopped at a Family Dollar not even a couple of minutes after leaving the restaurant. Shut it off. Was inside 5-10 minutes, came back up, started right up like nothing was wrong. Just wondering what could be causing it. Could it be the issue like you had in your video? What would you suggest?

[WingSlicer]

I know this video is four years old but it was my exact problem and I’m so thankful for the video.

[chrisrowan]

I’ve spent so much money trying to find this problem it wasn’t throwing a code but when you get in the throttle it would sputter and miss watched this video last night and replaced this hose this morning and boom fixed it awesome video thanx for posting it

[Libertarian]

Had the same issue with my 97 four litre ranger...great short and to the point video....250000 miles original engine

[garyshadleyii]

I had a 2000 Ford Ranger 4x4 3.0 extended cab for 19 years until I traded it in when I got my F150. It had 153, 000 miles on it and was running strong when I traded it. Like you, I wish I had that truck back as it was simple and easy to work on for the most part.

[hrafnagu]

I had this exact problem. I replaced my valve cover gaskets and had to take everything off the top of the engine. I got it all back together, replaced fluids while I was at it, then started it up the next day and it idled rough just like that. I checked fluids, ran it down the road a few miles and back. When I got back home it still idled rough. So I researched and found this video and as soon as you showed that line, I immediately remembered that I didn't reattach it😂😂 Engine idles fine now.

[icemancometh]

I have a 96 Ford Ranger and the idle isn't smooth until you give it a little bit of gas. I was on the highway and the radiator hose blew off- just needed tightened. The truck died and I pulled into the nearest farm. That was kind of fun because there was 2 dogs there - one was a chow and was deciding whether or not to bite me. But I put the hose back on and had some water in the back to get me by till I got to town.

[AnthonySmith-heok]

Dude!! So glad I found this! My 96 just started having a really shaky idle. Definitely going to check this out tomorrow. Thanks for the info!

[frostiexpenguin]

So glad I found you I have a 97 ranger like your buddy and I’m hoping after work today this will make things better for my truck

[andrequezbrown]

I was having the same issue. Mines wouldn’t stay crunk unless I kept giving it gas then right after I let off it’ll cut off. This helped a lot thanks.

[DirtyBandMan]

Yeah glad I found this vid I have a 94 3.0 In need of a new water pump, and been feeding it water till I get a new pump, but lately it’s been stalling while engaging on the gas in first gear then I start it back up and it has a real rough idle, I give it gas then it’s fine & I’m on my way, but now when I go to start it, it’s running even rougher and it dies giving it gas/idling is it my fuel pump or anything dealing with the fuel or is it my electrical system cuz I’ve been having a problem with my lights flickering as well and battery light always on but I doubt that since I’m having to dance on the gas pedal for it to run sorta good
Sorry this a long ass comment 😅🤣

[comedygeneration]

OMFG THANK YOU SO MUCH! I NEEDED THIS VIDEO NO OTHER VIDEOS ACTULLY SHOW THE TRUCK IDLEING ROUGH! LIKE NONE ZERO