rough idle

I have a 1995 XLT 4.0 RWD Ranger. The other day I was going too fast (~100 MPH) and had to slam on my breaks. After doing so my engine slowly started to die. I was looking in the engine bay and found an open nipple, along with a hose on my frame. After some looking, I found out it was for the...

93 2.3 manual ranger Cylinders 2 and 3 had leaking injectors. I just put in a fresh set of fuel injectors. First fire up it ran way better. Best it’s ever run. After changing 8 spark plugs and putting everything back together, it runs like complete garbage. Barely idles, will somewhat run if I...

So I’ve got a 1993 2.3 in my 1992 ranger, and I’ve deleted the EGR. Will I have to go into the computer and tune it so it idles better? It still is reading for EGR stuff, but it’s deleted. Also, I have an o2 sensor but can’t find the wiring to it. Will I need to either tune it so it doesn’t...

Hello. I have a 1992 Ford Ranger 4WD Automatic transmission. 2.9 L V-6 engine. 103,000 miles I live in southern Alberta and this is a Canada-built truck I have had this truck for about 18 months and put about 22,000 miles on it. has been running fine until about a month ago. It USED TO...

Hey everyone, im having trouble trying to figure out whats wrong with my truck. It is a 99 ranger with a 4.0. I have had the codes P0171 & P0174 now for awhile and it does this weird idle like its flooding after about 10-20min, I have had to reless fuel pressure a couple times when it was hot...

Figured before i dig super deep i may as well list the codes i have and see if any of yall have had similar problems and what your fixes were (also to help people in the future with similar problems rather than just googling it on my own) KOEO (Key On Engine Off): 121 Indicates Throttle...

Had overfilled my engine as a result of a stupid mistake, Pulled the plugs and holy mother were they bad. Replaced the first 4 (8 plug) and got a slight improvement, doing the other 4 today if i can manage to get them loose with the intake still on otherwise waiting for the intake gasket. Along...

So ive read through multiple forums and done some research and haven’t been able to figure out whats going on. I have a 2002 ranger edge 3.0. The truck is idle on average 750 bug dips to high 500s and mid 800s as ive seen from when i plugged in my scanner. The idle just kind of tumbles when its...

Howdy, I’m going to preface this by saying that I don’t know that much about mechanic work but am really enjoying learning and trying to figure things out. I’ve had my ranger for a little over a year, 4 cylinder 2.3 L manual with 130,000 miles. It’s always started rough and have to slam the...

Good morning ranger station. I've posted pretty much this exact same thing probably 2 or 3 times. My 2.9 has a shudder/shaking issue and has since the day I got it running after buying it. This is probably my 4th or 5th time having this problem randomly just show up one day when I get in to...

Hi all, I just inherited a 2002 Ranger step side with the 4.0 SOHC, about 179k miles, well taken care of. The previous owner was having an intermittent issue that he was trying to fix, but ultimately decided to give up and get a new vehicle, so he ended up giving it to me for free. I am trying...

SO, I'll give all the details. You decide what is relevant. My guess is a bad cam lobes and/or lifters. 1986 Ford Ranger 2.9 xlt auto 2wd. The motor was rebuilt by a very reliable guy we know. It was a family member's truck, then i got it years later. It sat in this truck for 5 years without...

Welp. I didnt want to bug the Ranger forum minds, but I am stumped. I have a 1986 ranger extended cab xlt with a 2.9. Towed it from the desert where it sat since 99 lol. Pretty much entirely new now. I didn't feel I was wasting money because I have no plans on getting rid of it. It has a rebuilt...

I replaced the spark plugs and plug wires in my 93 Ford Ranger 4x4, 4.0, 6 cylinder, and the engine seems to be misfiring while idling. It didn't do it before I changed the plugs and wires It seems to be every few seconds, the engine seems to just drop off. It doesn't seem to suffer the same...

I bought a 1994 ranger with the 4.0 and a 5 speed 4x4 with a blown headgasket ended up being two headgaskets and two cracked heads replaced everything got it running yesterday and today I was letting it idle and it idled pretty rough around 500-700 rpms then eventually dies i haven't been able...

Hi all, I have a 98 sport with the 4.0 SOHC. 3 years ago I bought it in hopes of fixing it and using it for summer weekends in the mountains. The truck ran then but had a misfire in cylinder 6. I traced it back to a stuck intake valve and a thrown cam follower. Long story short I removed the...

Awhile back I was coming home and lost power and seemed to be misfiring and blowing gas from the pipe. It threw a p0340 code. It was out of time. Put new timing belt on and got back in time. Still wont hold an idle, hard to start, runs rough and shakes like a beast. Changed the cam sensor...

So, I am stuck... My truck ( '86 Ranger 2.9 L) has a fuel problem. We have troubleshot as far as we can. For starters, you should know what she is doing. I recently moved back to CA from CO where I bought the truck. She ran fine for the 1st 6 weeks or so before she started running rough. On my...

Just bought an 06 F150 Triton 5.4. 172K, 4x4, 2 inch leveling kit, supercab XLT. I had a miss so I changed plugs and 1 coil pack and threw a K&N filter in it. Noticed as I was doing so, someone had changed a coil previously so there are 6 original and 2 aftermarket. I used the new style...

So not too long ago I finished changing the 4.0 in my '93 4x4 ranger. The engine I got to replace it was from a '92 ranger. The only visible difference I could see when I swapped the two was that the '92 had 1 O2 sensor and the '93 had 2 O2 sensors. After I got everything connected it...