Ford F-150 - 1997-2003 :: Slight Miss / Rough Idle - Hesitation Or Stumble On Acceleration
2003 F150 5.4 72852 miles
I have a Rough Idle & sometimes a hesitation or stumble on acceleration. I cleaned the MAF & IAC motor & Air & Fuel Filters are new. I got a 20890 scanner & ran test 6 53 as suggested in many posts by BlueGrass. Here are My results & what They Convert to.
1 00F5 .3675
2 0051 .1215
3 0000
4 0000
5 00A3 .2445
6 0000
7 0000
8 0000
I'm guessing the cop's are ok & probably need plugs? I was hoping to just swap a coil. Too cold to do plugs & truck won't fit in my garage.
Ford F-150 (2009-2014) :: Code P0078 - Stumble / Miss No Power
OK, 4th time in a week that my truck has had this problem... Seems to only be when the truck is already warmed up, restarting after sitting for a few minutes. Starts up just fine, but as soon as I drop it into gear it begins to stutter and stumble, running rough as can be and absolutely no throttle response. I have to kill the engine and restart the truck for it to correct itself, but the restart takes up to 5 seconds of extended cranking to finally fire up. Today is the first time I actually got a CEL and a code: P0078. Only had the truck 8 days now...
View 13 RepliesFord Excursion :: 2011 - Temporary Stumble / Miss After Warm Up With Power Loss
2001 V10 160000 miles.
1st happened Wednesday on way back. Temps all fine but had been in stop and go traffic earlier. Truck was on cruise and felt like fuel cut. I disengaged cruise. Throttle would keep it running and within 5-10 seconds it caught and ran fine.
Connected and reconnected all injectors, coil connections, tb and MAF connections. Nothing noted loose. No codes on OBD reader.
Drove around town last couple days no issues. Today towing three dirt-bikes about 45 miles. towards the end of the 45 miles. she stumbled as we crossed an intersection. Then caught and ran fine. Did it twice on way back home towards the end of the trip.
Had OBD reader in gauge mode with ignition advance, tp sensor, voltage and gallons per hour showing. None seemed to change when it stumbled.
Fuel pump is about 2 years old. Coils maybe 4 or 5 years old. Aftermarket. No codes on OBDII reader.
Chevrolet - 1500 :: 2009 - Noticed Irregular Fluctuation In Idle
I just bought a 2009 Chevy Silverado , have only had for a week and have noticed an irregular fluctuation in idle, also the transmission has lack of a better term jarred a few times and seems to downshift rough sometimes. The irregular idle seems to be worse when the ac is on, I can hear the compressor kick on and off alot. And just once I was driving and tried to accelerate and it didn't want to very much. Factory warranty is out and dealer didn't give option for extended warranty. They have agreed to look at it but aren't willing to do much other than clean injectors and throttle body.
View 8 RepliesChevrolet - S-10 :: 1996 - Running A Bit Rough / Irregular Idle / Cylinder 1 Misfire
My 1996 S10 2.2 liter pickup has been having some 'issues'. Truck has been kind to me over the years, but now is running a bit rough. It has an irreguler idle and continues to run this way through all speeds. The blinking code reads "cylinder 1 misfire". I did all the basics. I changed the plugs and wires, ignition coils and fuel filter. Here is where is gets tricky, after changing the fuel filter, it ran great again. Then it started to run rough again later that day. I thought I somehow clogged up the new filter, so I removed the new one for inspection. Realizing there was nothing wrong with it, I reinstalled. Truck ran great again. Went out to drive it to work a couple hours later and it started fine, then after about 10 seconds of running, it went back to the rough idle.
View 19 RepliesEscort :: 97 LX Automatic - Stumble At Idle
I picked up a 97 Escort LX automatic with the SPI 2.0 ... Car has only 95k on it and is perfect other than the idle quality. Initially had a misfire on cylinder 2&3 so I changed plugs, wires and coil pack. Checked and clamped the PCV hoses and the loose throttle body hose connection. Replaced the PCV valve. Car runs better but now I have a random multiple misfire. The car is hesitant to start but I have to say once it is over about 1500 RPM it runs like a scalded cat. I will be changing the fuel filter in the am and added Seafoam to the fresh 1/2 tank of fuel. I have sprayed every vac hose with WD-40 to see if there are leaks... none found. The car has stalled a couple times when driving but other than the miss it looks to be a good car.
View 1 RepliesAccent LC (2000-05) :: 2004 - Slight Stumble At Idle
2004 accent, manual, 114k miles. for the last 2-3 years it had a slight stumble at idle, and it was getting 36-38 mpg mostly highway. As part of a check on the starter function, I carefully cleaned the corrosion off of both thick wires going to the starter solenoid. When I started it again, the stumble was gone. Then, after almost 400 miles of mostly hy driving, my mileage was 42+. It has never been that high. Is it possible that the corroded wires caused both a stumble and increased fuel consumption? I did nothing else to the car, and most of the hy driving was freeway at very high speed.
View 1 RepliesGolf IV / Jetta IV :: 2001 - Rough Idle / Stumble And Die
Just bought a 2.0l 2001 golf four door. the previous owner had the car for only a short time. They claimed the CEL came on and the code was for the MAF. He cleaned it and when I test drove the car there was no light or sign of any issues with how the car ran. Today while figuring out why the alarm kept going off(battery died in key fob and i replaced them), it began idling rough. It had just started to rain as well. From what i could find from older thread is it could still be the MAF, TCV/ISV, or O2 sensor. Is there any good way to diagnose without a vag-com cable. Mine wont update its firmware and i'm screwed at the moment in terms of gathering info on the problem.
View 9 RepliesCelica :: 2004 1zz-fe - Code P0300 / Rough Idle And Stumble At Low Rpms
I have a 100% stock 2004 Celica GT ~125,000 miles. Over the last few months I have been getting a rough idle and stumble at low rpms. The other day the car would not restart after sitting for about 20 minutes. Only recently has it actually thrown a DTC. The error codes were for misfires (P0300, P0301,P0302,P0303, P0304). I don’t get a code every time but the problem seems to be more noticeable if the car has been ran for a while, sits for 20-30 minutes while in a store and then when I try to start it when I come out of the store is when the problem most often occurs. When it restarts it will stumble at low RPM and if I hit the gas it has little response and misses badly. I have never used a scanner until now. I am using a Autel MS509 scanner and I am not sure it is giving me the correct diagnostic numbers for the live data. I think the DTC are correct but the live data is questionable.
Here is what I have done so far.
- Cleaned IAC valve (completely removed and cleaned)
- Searched for vacuum leaks using carb cleaner
- Cleaned MAF sensor
- Replaced all 4 injectors
- Replaced upstream and downstream O2 sensors
- Replaced Coolant Temp Sensor
- Ensured cam tensioner is providing adequate pressure to the cam chain
- Tried 2 sets of new Iridium NGK plugs and a new set of Bosch Copper plugs
- Moved coil packs around
- New air filter
- New fuel filter
- SeaFoam through intake and gas tank. I have not mixed in the oil.
- Compression Test (1=190,2=190,3=160,4=178)
Things I have not done.
- Taken it to the stealership
- Fuel pressure test
- Valve Clearance
I am concerned about the compression test because according to the service manual it should be around 218. I was using a Harbor Freight compression tester and I am not 100% sure I had a good seal with the tester.
Santa FE SM (2001-06) :: Engine Stumble At Idle While Sitting At A Stop In Drive
Once warmed up, while sitting at a stop in Drive, there is what feels like an engine stumble every so often. Good guess is every 45-60 seconds, so it only happens once, maybe twice at long stops. There is a sudden change in pitch the engine, and the car - for lack of a better term - shudders. The thing I have noticed is that when it does this there is no indication anything has happened with the tachometer - RPMs hold perfectly steady. Additionally, there is no shudder when sitting in park or neutral, only drive.
I initially thought it might be an ignition fault, so when I replaced the balance shaft belt I also replaced the crank sensor. No change in behavior. I did some googling, which suggested the issue might be related to the EGR not closing properly. I changed all the vacuum hoses and removed the switching solenoid to test - it seems to be doing its job. I have not removed or inspected the EGR valve itself. However, because there is no symptom in engine speed and the sensation doesn't happen in park or neutral and only happens when warm, I am starting to suspect the transmission itself is the culprit - I can imagine if the torque converter quickly engaged and disengaged - and a little power made it to the wheels - the same result would happen.
There is nothing else odd about the engine or transmission. No codes. Runs like a top. Transmission always shifts perfectly. Fluid was changed two years ago, about 15,000 miles. What came out looked good as well. I'm okay with replacing EGR components, but I don't want to throw money at the problem unnecessarily. Maybe try driving around with the EGR vacuum hose pinched off or disconnected?
Ford 6.0L Power Stroke Diesel :: 2004 - Stumble And Hesitates At Idle / Acceleration?
I have a 2004 f350 6.0 it has 73000 miles on it. I've had the truck for about a month and its developed a slight stumble, hesitation. It does it during idle and acceleration, if I give it more throttle it smooths out. The cel is not on and there are no stored codes.It did this a few days after i bought it,i noticed the map sensor was broke in half so i replaced that and it smoothed out.But it came back. Exhaust is clean no white or black smoke at all.
View 11 RepliesFord 6.0L Power Stroke Diesel :: 2006 - Hesitates Intermittently - Stumble At Idle?
I have a 2006 F-250 4x4 with no cat, and no egr but the valve is still connected. It has about 146,000 miles. Just recently when warm, it has a slight miss every once and a while when stopped and in gear. Just a slight drop in RPM then recovery. Its mainly used on the highway and 99% of the time I set the cruise and its smooth as silk. Every once and a while I feel it stumble once or twice, recover and it is fine for the next 80 miles with no issue. It started as once every few trips but now It seems to be happening at least once every other. I use Motorcraft filters (maybe 6K on the fuel filters) and rotella oil. My scangaugeII shows no codes and no Injector pressure issue (1200-1400 at 75 mph depending on grade) and the FICM voltage stays between 48.5v and 49.0V. What should I check?
View 2 RepliesFord Ranger / B-Series :: 1987 - Rough Idle And Stumble When Starting Out From A Stop
1987 Ranger and the computer will not communicate. I'm trying to check for codes because of a rough idle and stumble when starting out from a stop. Check engine works but won't flash when using a jumper across the data link. Used a OTC scanner but it only times out and comes up "no data". Where to go from here?
View 7 RepliesSubaru - Outback :: Off - Idle Stumble / Check Engine Light P0171 (lean) Or P0420 (cat)
My 2007 Outback has had an off-idle stumble since I bought it a year ago. Otherwise runs well and uses less gas than the 2000 Forester it replaced. I've had a smoke test done, cleaned the throttle body, replaced front oxy sensor, and used a variety of gas treatments. I don't trust the local Subaru dealer to work on my car and my local garage has run out of ideas, but suggested MAF sensor may work. Some days it runs better than others. Occasionally I'll see a check engine light P0171 (lean) or P0420 (cat) but it will go weeks between setting those.
View 9 RepliesFord Super Duty (1999-2016) :: Hard To Start Sometimes - Stumble And Idle Roughly Then Cut Off
06 F250 6.0 with only 65,xxx miles on it. This has happened twice and both times the engine was warm and had been cut off for less than 10 min.. When I tried to crank it back up it stumbled and idle roughly then cut off. After several attempts to re-crank it still would idle rough and I tried to give it fuel but no change, even with pedal fully depressed. Then it would die.
After sitting a few minutes it starts normal. Both times I didn't have my obd2 adapter for my torque pro. The last time it happened I went home and hooked it up and got no codes. Everything looked fine. What could it be, where should I start looking. Batteries are1.5 years old. Oil, oil filter, and both fuel filter changed about 1000 miles back. I have had the truck for 1.5 years and the oil has been changed twice.
Golf IV R32 :: Rough Idle With Slight Miss Under Acceleration
Woke up to go to work and it started up with a rough idle, got a block down the road and it had a slight miss under acceleration. Guessing its a bad coil, I've got a spare featured I'd play I I mini miny moe when I get home unless.
View 5 RepliesElantra MD (2010-15) :: 2013 - Engine Began To Stumble And Idle Poorly Like About To Stall After Tank Filled Up
I just started to have some idle problems with my 2013 Elantra GLS auto 1.8 that has 10k miles.
I went to the gas station to fill up the tank since the gas was very low (30 mile range). I filled up the tank, started the car and the engine began to stumble and idle poorly like it was about to stall. I put the car in drive and the engine stalled. I restarted the car and it ran normally.
The car will now briefly idle poorly when I'm at a stop light. The car will be at a stop light idling and running normally. Suddenly, the tach will go down to 200 rpm and then up to 1200 rpm, like it is about the stall. Then it will idle steadily and be back to normal. This has happened about three times over the past two weeks.
What may be causing this intermittent idle problem?
Subaru - Forester :: 2002 - P0302 Code With A Miss Only When Idle
I have a 2002 Subaru Forester L with 178,000 miles on it. I just had the valves adjusted. I have replaced the coil pack, #2 injector, plugs, wires, and throttle position sensor. I have also cleaned the idle air controller. The car only shows sign of a miss when it idles. It gets great gas mileage otherwise. I am at a loss on what to do next as the car doesn't have a MAF sensor, I can't do anything with it.
View 19 RepliesPassat (B7) :: 2.5 - Chug / Miss And Shake For About 5 Seconds Or So Until Reaches Idle
It's happened since new, I figured maybe it would work itself out, but it hasn't. On the first start up of the morning, It will start fine, rev up and as it is reving down it will chugg, miss, and shake, for about 5 seconds or so until it reaches idle. If I put it in gear while it does it, the whole car will lurch and shake. It operates fine after that.
View 1 Replies