Ford Ranger / B-Series :: Surging Idle When Start It Up
Jun 30, 2012
My son bout his first truck yesterday. 98 ranger sc 4x4 auto 4.0. Beautiful shape 139000 miles. got it cheap as it has issues. its been parked for a year. It has a surging idle when you start it up. rev it to 2500-3000 rpm and it idles fine turn it off and restart it surges again until you rev it. When we test drove it it ran like it was running out of gas/bad fuel pump, sputter at full throttle but accelerate at part throttle. Gauge said under 1/4 tank of gas. We put 3 gallons of gas in it when we got home and it seems to run fine now other than the idle surge. it had a 174 code(lean bank) but if it was running out of gas it should pull a lean code right? I am thinking IAC or intake leak.
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I'm having trouble with my ford ranger. It cold starts fine, and drives fine while cold. Once it warms up the idle is barely keeping it running, or surging 1000-1500 rpms above normal idle. Any gas I apply while hot idling will stall out the motor, and will not restart. It acts like it is very flooded when I try to do a hot start. I pulled the IAC valve off and cleaned it even though it was very clean and actuated properly. I also cleaned my MAF, and that changed nothing. I really do not want to just throw parts at it hoping I guess right before I'm broke. Not sure where to go from here, and I live in Alaska where I am fixing this outside.
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Throwing codes ... p0136, p1131, p1151 acts like it going to just stop then will take off, at a stop light it will sound like it has a large cam in it... It is a 1998 4.0 V6 automatic tranny.
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94 Mazda B4000. V6 4x4 manual
After engine has ran about an hour, I make a stop at location, then on startup engine has a hard time staying idle after engine it's warm. Cold start idles fine, hot start it dies out. I must rev gas for truck to stay on. What could this be?
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I live in Kansas and was home in Georgia for the last 2 weeks. The truck drove great there after a fuel up started missing and surging at 50 to 70 thought it might have been bad fuel. waited till it was low added Lucas fuel treatment and premium gas still was doing it. no check engine light. went to Advance and fuse for light was blown they checked and was getting mass air flow code. unplugged it and seemed to be better, not perfect but better. plugged it back in and went to do it again. Changed mass air flow night before the drive back to Kansas. Ran well from Savannah to north Georgia then started doing it again the rest of the way home. Going to have advance check code again.
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1999 mazda B4000 4WD 178000 miles 5 speed manual, I've been having a crank no start problem but after a few tries it would start, a week or so ago it was really cold (23) it wouldn't start so I opened the air box and shot it with starting fluid it took about 5 long sprays but it started.
It ran up op 3200 rpms and won't go back down, took it to my shade tree mech. he hooked it up to the diagnose thing it showed no codes, he poured water over the motor it different places and toward the back it idled down for a second so he says "blown intake gasket' so we replace upper and lower and sure enough we could see where there was a bad spot on the upper and a cleaner spot on the port.
That was not the problem it still idles at 3200, I mean wide open screaming, could the starting fluid have done something? Now he says "blown head gasket" I never had any idle problems before matter a fact besides the hard starting problem that started it was running just fine, what happened?
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My manual 5 speed 99' 2WD 2.5L Ranger is starting to have some small problems here and there. My main concern is when I start the vehicle sometimes, there is no idle. The vehicle will turn over and if I do not hold the gas pedal down it will die immediately after about 2 seconds.
If I hold the gas down so the RPM's stay up (Around 700 RPM's or so, something just a little above 0 to keep it from dying) after about a minute, sometimes few minutes the idle will kick in and I do not need to hold my foot on the gas pedal to keep the truck from dying.
This is about all I know from the problem besides that it does not matter how long my truck is sitting. For example, my truck was sitting for 5 days and I came home and started it up just fine, but after I drove it a few minutes later and stopped driving, when I went to drive it about an hour later the symptoms came back again.
Also, My brakes are acting a little funny. I went through when I first got the vehicle and bled the brakes, took the front rotors in to auto zone or another shop and had them fixed up, and new brake pads. Sometimes when I first start driving the brakes are extremely sensitive, to the point where I apply a little bit of pressure and my truck will start skidding. This goes away after driving for a little bit though.
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I'm getting tired of the same problem about every 6 months. Plug #4 keeps going bad. Its been doing this for years. It starts with rough idle when first starting up that clears up quickly then eventually it leads to a misfire when accelerating. Every time this happens I replace plug #4 and its good to go. Just recently (roughly 6 months ago) did a full tune up and all new injectors. About a week or 2 ago it started its rough idle at start up and just the other day it started misfiring again. What would keep causing this??
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My 2005 2.3l Ranger ran great. I moved a trailer about 150 feet and stalled the truck backing it up. Stick shift. Unhooked the trailer and pulled back into the parking area....all the sudden the truck has extremely rough idle and stalls. It runs good on the highway. AutoZone ran a OEM number to cross: P0171.
I cleaned the IAC with intake cleaner. No Luck
I unhooked battery for 15 min. No Luck
I sprayed intake with 1/2 can of intake cleaner. No Luck
I did not have a tamper torx to remove the MAF. What next.
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I have 95 ranger 3.0L revs up over 2000rpm at startup then comes down slowly to a little over 1000... Changed the IAC valve still does it... When I let it warm up I unplug the IAC and idles normal and smooth about 750 RPM so I don't think it's a vac leak... What else could it be???
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I have an 87 ranger, 2.3 4cyl. 2wd 5 speed. When I start up the truck after it sits for a few hours it will idle fine but then it starts to bog down and wants to stall but after about 5 mins its fine and runs like a champ. I don't know if its a sensor or what.
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I recently acquired a 4.0 Ranger 4X4 Auto for my use in Costa Rica. It runs fine but it'll illuminate the CEL within a few seconds of starting and whenever revs fall below approx 1000. When pulling off the line or accelerating, the light will go out but comes back on when the throttle closes. The previous owner has replaced the MAF and idle air valve. I've corrected a lot of issues with the vacuum system and think it's back where it ought to be. I know I am going to need to pull the codes but I'm back in Dallas now and can't do it yet. Need general list of affected parts that I could buy here and take back down.
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When I am at idle, the compressor keeps turning on and off every few seconds. It seems to work fine while driving. What do I need to do to fix this?
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My 04 ranger is back at it AGAIN. It started about 3 years ago.
- Cruising along on the highway and then come into town. Idles at 2000 RPM
- Shut it off. and restart it. Again, 2000 RPM.
- Shut it off and it idles normal
- Drive it 2-3 day and then it idles high again
- I have clean and functioned the IAC and it works fine
- Cleaned throttle body and I never can get it to stick.
- Replaced throttle cable
It still was idling high
- Replaced ECM and it idled normal for about 1 year
- Replaced em again and it idled normal for about 6 months
It is back at it again. For what ever reason the EM is telling the IAC to open up and raise the idle...
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Allright, I seem to be having these very strange sounds at idle. Mostly when I am in Drive and waiting at a red light. In Park, it isn't as bad it seems.
One sound is knocking. A kinda slow one and irregular. Not a motor knock tho. Doesn't sound like that. It also kinda clicks from under. So, those both sounds come from under or the sides of the truck.
Should I worry about this? I've had these sounds since I've got the truck. Sometimes louder than usuall.
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88 ranger. 2.9L manual. Just bought this truck. It ran great when I bought it. After a day or 2 it would idle rough. Almost die but it wouldn't. No check engine light. It seemed to do this intermittently. Some times I'd start it and it be fine. Other times I'd start it and I'd expect it to die at each stop light.
Now for the last couple days it dies on every start up. It won't idle. It'll start right away and then die. I can keep it going by keeping the engine rev'd but the check engine light is one. If I keep it running and start driving down the road it'll drive with the check engine light on for about 5 minutes. Then the light goes out and it runs like normal, even at idle, until I shut it off. Then it's the same story at next start whether it's right after I shut it off or hours later.
It doesn't seem to matter whether the engine is hot or cold. When the check engine light is out, it runs great the rest of the time whether at speed or at idle. To me it sounds like a sensor is on it way out. I figure if it was vacuum, it happen at every idle, and if it was fuel it happen all the time or at least every idle. Tried to get a code at parts store but the reader wouldn't work. It couldn't tell it was plugged in the the truck for some reason.
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i have a 97 ranger xl with 2.3. it was recently crashed in the front, air bags deployed. i fixed the bodywork but couldn't get it to run properly. it starts but will not idle. i have replaced the iac , evr , maf. fuel pressure holds 35-40 psi running does not leak down after engine stops
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Went with my best friend to pick up his new Super Duty and also visit his Grandfather in Easter Washington. The new 2014 F30 is wonderful. His Grandfathers Ford / Mercury Escort Wagon had the timing belt break and a local shop replaced it, ran good for two days then started loping. When cold it starts and runs great in about 2 min it comes off of cold loop and then starts loping from fast idle to all most off. (never seen a motor RPM drop so low and not stop) when you put it in gear it runs, we did not drive it but Grandfather said it drove home ok just started not idling when in neutral or park.
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On startup, hot or cold, I get an initial high idle, up to around 1800 rpm's. This happens immediately when engine starts, and then idles right down. This has done this since new in '04. Dealer at that time said it was normal and not to worry. It's always made me wonder, but I trusted the dealer. Ya, not always smart.
After 92k miles. Engine runs fine otherwise, but I don't really care for grabbing a bunch of rpm's on any engine without having the oil pressure up to normal.
A few weeks ago, I started it up, and some yahoo said he knew I drove big trucks by the way I started my Ranger. That was one of those times. I'm thinking IAC is wide open maybe?
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I have a 99 Ranger w/3.0. It idles about 1500 rpm cold,and 1200 warm. Here are the things that I have tried.
1.Checked ALL vacumn hoses/lines
2.Changed Air idle control sensor
3.Throttle position sensor
4.removed and completely cleaned throttle plate in throttle body.
5. removed top of intake manifold and checked for cracks and/or leaky gasket.
Nothing seems to change. Could it be a faulty ecm?
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Drove 28mi out to dinner and when leaving after, she wouldn't start. Took it to work in the morning, and it ran fine prior to that. It was 15degrees outside, added heat to the gastank thinking the fuel line was frozen. Tryed to fire on, but it would only idle briefly surging while doing so and die, like not enough gas. It did start after I held the key down during this surging process grinding the starter also, should have driven home, but I shut it off like a idiot, as a result, had to tow home. Noticed TCS OFF light was lite up while it was running, then I shut it off, TCS OFF LIGHT went away when I turned key back on to attempt a 2nd restart. After i did that, it wouldn't fire on again. Towed to my house, I do not hear the fuel pump trying to kick on when i turn on the key. Fuel system is dry. Cranked over next day and definitely no gas in the lines. Bled the fuel system, no fuel shot out. Have checked the fuse box and the one under the hood too. Replaced the fuel pump relay but still no go just (this blows)...
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