Azera TG (2006-11) :: Misfire And CEL Flashing / Skipping When Driving
Sep 2, 2014
My Azera has developed a misfire. Upon leaving work today it ran rough ass soon as I started it. CEL flashing.. I could feel it skipping as I was driving home. Skip never let up.
When I got home, I hooked up the Scanner to it. DTC P0300 was set. Which I think is random misfire. I checked underhood. Nothing appears amiss. With engine off I clear the code and restart the car, This time it set DTC P0301 cyl. #1. I think.
I do not have all the factory service manuals yet. so I need to know what the firing order is on the 2006 3.8 L VIN F Engine. And where the #1 cyl is located. I am suspecting a bad coil at the #1 Cylinder.
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My 2006 Azera has a most bizarre problem. I can drive the car just about any where I want to with no problem. However whenever I drive it at a very low speed it starts to overheat, and it overheats quickly. It is most notable when I drive up the hill to my house. It is a dirt road and is a very steep hill. I generall shift into 1st to climb the hill. To see if going into first caused the problem I tried the hill a couple of times leaving the car in automatic. One time it did not overheat and the second time it started to heat up a little but then cooled right down once I stopped the car.
The dealer told my wife there could be a bad connection on the battery and they tried tightening the connections and the second time they replaced a battery cable, which was not cheap, and how either of those could affect engine heat is beyond me. I am at times almost suspicious that perhaps I just have a temperature gauge that goes psycho every now and then, but it goes psycho consistently. I don't think it's a warped temp gauge. The dealer hasn't mentioned the thermostat as a possibility and I'm thinking of pulling it out and testing it myself.
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I replaced the oil pressure switch on an '07 Suburban 5.3L because the oil pressure was showing low once the engine warmed up. That did nothing, then I found out about that little filter/screen under the sensor. I intended to remove and clean the filter then reinstall it. While I was pulling it out, I dropped it back behind the engine and couldn't find it. I checked online and found a few people in other forums that said to just remove the screen as a "fix", so I left it out and put the sensor back in, just to get the vehicle drivable. It started right up and ran fine for me, parked it, and a after sitting for a few hours it started popping while driving with the SES light flashing on the drive home.
Code P0300 was set, no cylinder specific misfire codes were present. I checked the misfire data and cylinder #6 showed tens of thousands of misfires, #5 showed several hundred, but I think it was just picking them up from #6 since #5 is right after #6 in the firing order. I disabled each injector with a scan tool, all changed the idle except #6, it did absolutely nothing. #6 fuel injector had good pulse to it, I connected a fuel pressure gauge and put power/ground to injectors #6 and #4, both dropped the same fuel pressure. I did the "cylinder deactivation" test on the scan tool for the four cylinders that have it, they all did the exact same thing - the engine bogged way down for a couple seconds and then died. Is that normal? I can't say I've ever seen a V8 engine die before when running on 6 or 7 cylinders. I checked compression on cylinder #6, it showed very low, almost zero, but I tried it a few times and it would show just a little compression at times... valves staying shut? I'm thinking when I opened the pressure relief valve on the gauge and the piston was near the bottom of the cylinder may be when it showed some compression. I also switched the coil/wire/plug from #6 to other cylinders and the miss did not follow.
Could having that screen out cause this problem? Having the engine die when deactivating the cylinders makes me wonder if maybe it's commanding all four at the same time, although the test shows each cylinder being controlled separately. Using a MODIS, not a TechII. I just got done putting in a new filter/screen to see if it would make any difference, and of course it didn't.
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Have a 2009 Limited with 14,500 miles. After driving an hour at 75 MPH on interstate on a hot day, the car died. The immobilizer warning light came on, and I coasted to a stop. Waited a couple minutes, the car started right up, ran fine. Went a few miles, and car died again. This time check engine light also came on. After couple more times, car towed to dealer. No problem apparent at dealer. 4 codes were active - all HO2S Signal Stuck Lean. Dealer called Hyundai tech and were told to check gas quality and replace all ground bolts and sand paint at contact. Gas was O.K. Took for 42 mile test drive, no problem. I drove home on interstate and after an hour same thing happened. Obviously not a ground problem. Now running fine and at my local Hyundai dealer.
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I own a 2006 Hyundai Azera and my air bag dash light stays on after I start the car and while driving. I understand that there was a TSB for the passenger side airbag but not the driver's side air bag? I called the dealership and they told me that since I have over 60K miles, it is not covered under waranty. I have also read that there are air bag sensor wires under the driver's side seat and this could be the source of the problem. Is it easy to get under the driver's seat to access the air bag sensors?
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My air conditioner (from new) seems to work properly only when I'm driving over 50mph. On the interstate, for example, it's fine. Recently I had a passenger who really drew my attention to it. "What's wrong with your air conditioner. You should get it fix!"
It seems that, when I am stopped (as in stop-and-go traffic) or parked with the car running, the air conditioner blows warm air.
Is this normal for this car? It's a 2006 Azera. If not, is there an easy fix?
This happened from day 1, so I just thought it was normal. But I guess it's not.
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Started with trouble starting right after a fill up. Right before I was to replace the evap purge valve, I filled up and on my way home, the MIL starts flashing and the car starts to misfire significantly. I replaced the purge valve, but no change in performance (though my car now started up right away after filling it up!). I would drive the car and it would misfire while idling at a light, backing up out of my driveway, accelerating on flat and inclined roads, etc. Codes were 300, 301, 303, and 337 (misfire, misfire, misfire, crankshaft position sensor low voltage)
So, I replace the crankshaft sensor with OEM (this is my 3rd one and this sensor going bad has caused different symptoms each time. First my car would cut out and die while turning, second it would not allow the car to start, and now presumably rough idle). Now the car starts up with less cranking, but still runs rough and misfires (only 301 this time).
So, next I replace the plugs with NGK V's gapped at .044. Better, but not perfect. I noted that the plug in cylinder 1 was darker than the rest.
I read on thread here about regapping to .035, so I tried that. Again, I noted that cylinder 1 plug is slightly darker, while 2-4 have a slight white coating. After the regap, runs great, no misfires, smooth acceleration, perfect...for 24 hours.
On day 2 I start to feel a slight misfire going up a hill, and sometimes at a red light or accelerating from a stop...but not all the time.
Now its day 3 and similar to day 2. Not since I regapped the plugs has the MIL been on, so the misfires are hard enough to feel, but not enough to trigger the MIL.
Not sure where to go next. The coil packs were replaced last year (35,000 miles ago). The car has 137,000 miles on it.
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I have a 2008 Hyundai Accent that is giving me one heck of a headache. I keep getting a code for number 1 cylinder misfire. When you start it up it runs fine for a while then the CEL will flash and it will start running rough. As soon as I shut it off and restart it, it runs fine. I even experimented with it this morning on the way to work. It started running rough doing 60, I put it in neutral, turned the car off and then right back on, put it back in gear. It ran fine the rest of the way to work. I have swapped coil packs, fuel injectors, spark plugs, and have even hang tested another ECM. Still number 1 cylinder misfire.
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I did not get the specific cel code but its what the guy told me at autozone.
Long story short. Washed engine, let sit for about 30 mins. Car started with flashing CEL and was "puttering" and very rough idle. Drove home took intake off and replace with stock, took spark plugs out and they were not wet. Then let it sit for about 15 mins. Started just fine. No CEL at all.
The accent saved the CEL and the guy told me that Cylinder 1 had a misfire.
My question is, should I do anything now even though the car seems to be running ok?
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Been awhile since I've been able to post but I've got a serious issue with my 2006 Ranger XLT 4L V6. So last night about 2 miles from home my check engine light started flashing like it was a at a rave and my engine wasn't acting right, also had the STRONG odor of raw gas, no other lights from the dash, no fluids leaking, oil was good n nothing in radiator but coolant. Was able to baby it to my current home but all my tools are in storage so had to wait to get my ODB scanner to see what's up. Scan came back as 'cylinder #3 misfire' & 'O2 sensor reading rich'.
Go cylinder #3 spark plug out and it were fouled bad. Got ride to the store and got a whole new set. Got back n got'em changed and fired ut up, idle still rough and check engine started flashing again and white cloud coming from exhaust pipe and STRONG odor of gas. Check and now have 'multiple missfire', 'cylinder #2 misfire' and 'cylinder #3 misfire'.
Shut it down go and double check ALL spark plug wires are connected and TRY to start, get about a turn n a half then starter spin. Try again and the engine won't even turn over. "Great I've seized the engine!" Was able to put a socket on the crankshaft pully and manually turn the engine over "whew didn't seize the engine", did this a couple of times and tried to start, was rough but eventually it fired up, still idling rough and again check engine light flashing, while it was running I pulled one plug wire at a time from the coilpack to see/feel the lighting and there was spark for the 3 I pulled, didn't affect engine idle.
Run codes and 'cylinder #3 misfire', so now that the engine is was warmed up I pulled out my ohm meter and started checking wire resistance. Cylinders #1, #2 were at .012, #3 was .011 and #5 was .009.
I've figured that the raw gas is due to cylinder #3 not burning and just pushing gas into the exhaust. So to the brass tacks, do I invest in a new set of wires? Or could it be the injector being stuck open and just flooding the cylinder? No when I originally pulled the #3 plug fuel did not spill out. Haven't pulled #3 again due to it being May in Arizona and had to take a break. I'm going on the assumption that the engine wouldn't start after a short run do to "hydraulic lock in cylinder #3", my manually turning the engine over cleared this and allowed the engine to start.
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My tires are cupping on my Azera. I've had the tires rotated every 7500 miles as required by the maintenance schedule. The tires make a lot of noise while driving, especially at highway speeds.
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I know it is a random cylinder misfire code however I started my car in the morning and it was fine I moved it and put it back in my driveway. I started it up later and waited for it to heat up i came back outside 10 min later and my check engine light was flashing and my car was shaking like crazy you could tell the engine was misfiring like crazy. I had under a quarter of a tank but not empty yet. I shut it off and turned it back on and it was still doing it. I drove the mile to the gas station the way it was.
Under partial throttle it was revving to 4500 and over 5, had to let of throttle to make the car shift up a gear. I filled up and started the car again performed fine after that however the check engine light was solid now and still on. I went to my local mechanic and he read that code P0300. I changed my spark plugs that day and they were crap the original spark plugs I have 65,xxx on my car now. Car is smooth now. I cleared check engine when i saw him first and it did not come back on all day even before i changed the spark plugs later that night. Why my light was flashing and why my car was acting like that till i filled up?
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Replaced the spark plugs and wires a couple months ago. Started skipping yesterday throwing the #4 misfire code so I replaced the coil pack, reset the check engine light but it's since came back on and has a rough idle and loss of power. By the way, it's a 97 F150 4.6L 4x4 with 200,000 miles.
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I was having a discussion with a few friends and some think skipping gears when driving is bad and some say that its fine. For example going from 2nd to 4th and skipping 3rd gear. Which one is it?
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Subaru Outback 2003 4 cylinder runs ok first several minutes then starts to skip. Appears to be maybe EGR related? Plugs/wires/dist ignition are ok. The car was double filled with oil the started, smoked. Could that affect the ECR or PVC? Could this damage the fuel injectors?
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A couple days ago, my Excursion started skipping 2nd gear when driving in D. The RPMs will go up to 3500 or so before slamming into 3rd gear. Shifting in all other gears works fine. However, when manually shifting through the gears (1, 2, D), it finds 2nd gear and shifts fine. I am mechanically inclined when it comes to engines, but not an auto trans.
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I have a 2008 Elantra with 50,000 miles. I know I was overdue on the tranny fluid change and the car was getting bad gas mileage and skipping gears. I brought it in and had the tranny flushed and refilled and now its running good. I thought it would be good to get a price on spark plugs because the book said replace at 60,000. I called the dealer and he basically told me he has not sold many of the plugs and they should last 100,000.
I seem to be getting conflicting info on what should and should not be done at the maintenance books written schedule. I looked for a price on Fuel Filter air filter which is in the maintenance to replace but again conflicting info stating that should not be changed unless there is a problem. Anyway, what should and should not be replaced at specified intervals? I know the tranny fluid change should have been done at 30,000 because it was very dirty and causing issues for me.
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I bought a 2006 Certified used Prius a month ago and it was rear ended 2 weeks ago (uninsured motorist couldn't be more pissed) Well since the wreck the MFD screen has been skipping bars in the consumption category. It will just leave a whole space blank. Everything else it working fine. We took it to Toyota to figure out what was going on and they are saying that everything mechanical and electrical with the car is fine. They said the only thing they can think is that the MFD screen is having issues after the wreck.
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I bought a gs 350 AWD about 3 weeks ago and I love it. But one thing I have been noticing is often but not every time from 0-20. I feel vibrations and almost like a skipping/jumping of the tires/car, its very soft. Is this normal?. I still have a dealer warranty of 30 days left. But its kind of far so I wanted to see what it was before I drove 2 hours to have them check it out. what this could be?
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I have a 2010 Hyundai Sonata GLS that I purchased just over two years go. I have a couple of issues with it at the moment.
My first problem is I clipped my drivers side side-view mirror and a little plastic piece inside the side-view mirrror housing where the bolts go thru broke off. I checked with Hyundai and it seems like you can't purchase that plastic piece from them(they make you purchase the whole side view mirror). I also checked around at local junkyards but none of them had a 2010. What I can do here?
My second problem is when I'm slowing down to a stop and my speed gets around 10 mph or so the car jumps/jerks. It feels like it's almost skipping a gear or something and it's very noticeable. I was wondering if any of y'all have had that problem before and if so what did you do?
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I have a 2006 f150 5.4l, and I have developed a problem. It seems the my truck has started to skip, or "pulsate" when I am accelerating. If I really get on the gas the "pulsate" goes away. This only seems to happen around 45-50 mph. Now this is where it gets weird. I have no check engine light on, and I have checked to make sure my light is working. I brought it to a garage and they told me something about Fords having a misfire issue that sometimes doesn't trigger a check engine light. . . . . now idk about that because every misfire I have seen triggers a check engine light, but I had them replace the spark plugs anyways. And it didn't fix my problem. At this point the only thing I can think of is possibly tranny.
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