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rough idle


  1. 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...
  2. 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...
  3. 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...
  4. 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...
  5. 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...
  6. 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...
  7. 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...
  8. 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...
  9. 96 2.3 2wd 5 speed timing or misfire

    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...
  10. starts when cold, runs rough till warm, then dies won't start again for at least a da

    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...
  11. 2006 f150 5.4l triton help!

    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...
  12. 4.0 Blown ECM

    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...
  13. Edgefevah

    what to do...

    [/URL][/IMG] I am getting this sound at idle, I havent been able to pin point it quite yet and was hoping some skilled veterans of the 4.0 could point me in the right direction. The truck idles at 950rpm and the sound is sporadic. The motor is currently running 5w40 sythetic Chevron oil, at...
  14. tenga

    Same old problems, thinking fuel related

    I find myself having to post here again unfortunately, symptoms include very intermittent power loss, of which haven't been able to find a pattern. (It will go a whole day of driving without doing it, ill park in for an hour and get back in and it wont make it 2 blocks before doing it. though...
  15. 99 Ranger rough idle.

    Hello. I've been trying to figure out why this trucking is idling poorly. I've replaced cam sync and sensor, plugs and wires, and sea foamed it. She runs rough when cold but improves when warmed up. I've attached a plot and freeze frane data with the hope on getting some tips on what to do...
  16. Engine stalls in the mornings?

    First time posting something. Awesome site by the way. my 2.9 stalls in the morning. I start it and it dies 10-20 seconds after, doing this 2 or 3 times and it idles fine afterwards. I can smell gas like its being flooded or something. I suspect it has to be a map sensor or air temperature...
  17. 91 ranger ROUGH/DYING idle, STRONG gas smell under hood, gas dripping from headers

    91 ford ranger 2.9 The other day on a 3 hour road trip the check engine light came on for 15 minutes, and then shut off for the rest of the trip. While driving the other night it came back on; no real loss of power just seemed to be a slight "caming" effect at idle. I ran the obd1 self test...
  18. budgreen1986

    V6 4.0 bucking and jerking...

    hi every one, i have a 1995 v6 4.0 ranger splash, Recently i got gas at a speedway 20 mils from home and the next day my truck kicking and jerking run fine for a sec and do the same it idles rough , 6 mo. ago i had the o2 sen. changed and plugs and plug wires, Champion plugs .. the other day i...
  19. Need B2500 Engine Specs

    Hello Everyone, I'm trying to diagnose a rough idle condition on my dad's 1999 Mazda, B2500. It's a 2.5L, inline 4 cylinder. This truck will start with no problem, but will begin to idle poorly after 20-30 seconds. It will also stall if the throttle is slammed shut. Very weak power overall...
  20. bad fuel milage, rough idle, no power

    hi i have a 1992 ranger 2wd 4L. during the winter i was getting 7.7 mpg and now im using 14 mpg. i understand in the winter i use heat but im up in canada so im still using heat although its abit warmer out, the rough idle also gets alot better when the air is warm, its so bad on a cold morning...


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