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rough idle

  1. PCV Hose Elbow Replacement

    Hello all, My 2001 4.0 SOHC was giving p0171 and p0174 codes, so I checked it out and the PCV hose elbow was totally cracked. I replaced it with a Dorman 48011 part; it was pretty simple. I thought this would fix it but now upon startup the truck idles super rough and even stalls out sometimes...
  2. Please help, local mechanic wouldn't

    My 2005 4.0 V6 ranger is having a few issues that even my local mechanic didn't wanna get into. First things first is the thing hard starts after sitting for more then a few minutes, it cranks fine and hard but it won't start until about 5 seconds of cranking. The only way to remedy this is by...
  3. 2.3L ('83-'97) pls help

    this is a thread I already started , the truck has a rough idle for the first minute or so of running and shifts hard I can't figure this out. https://www.therangerstation.com/forums/index.php?threads/rought-idle-for-the-first-few-seconds-after-starting-goes-away-after-a-minute-or-so.211080/
  4. 2.3L ('83-'97) rought idle for the first few seconds after starting, goes away after a minute or so.

    I have a 97 2.3 ranger with 179,240 miles, has been a great and strong running truck but recently started bumbling around while shifting and when you first start it in the morning it sounds really rough, can even kind of hear it rhh rhh rhh up and down in idle and after about a minute it goes...
  5. 4.0 rough idle "pulsing/chopping"

    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...
  6. 2.3L ('83-'97) Running rough after injector change

    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...
  7. RustRatz

    2.3L ('83-'97) Difference in Computers

    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...
  8. frankgeno

    Surging Idle. HELP PLEASE

    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...
  9. Idles rough after 10min and P0174 & P0171

    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...
  10. KevinSonOfDad

    CEL HELP Finally got my check engine light fixed... unfortunately its on :/

    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...
  11. KasenLeigh90

    2.3L ('83-'97) Engine Running Rough, getting weird KOEO codes, read recent messages for best info

    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...
  12. 2002 3.0 Ranger rough idle no codes

    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...
  13. 2.3L ('83-'97) 94 ranger, reading cold and rough idle

    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...
  14. 6 months later, still shuddering

    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...
  15. 2002 sputtering occasionally

    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...
  16. Boingo

    Bad Cam and/or lifters ?

    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...
  17. Boingo

    86 ranger won't start with new relay

    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...
  18. Was fine before

    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...
  19. Dies at idle. help

    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...
  20. 98 explorer starts, runs rough then dies.

    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...

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