My 2005 yukon runs rough between 1300-1700 rpm, seems to run fine at all other rev's, doesn't matter what gear I'm in, (trying to troubleshoot put in low to see what it would do, same problem) if it's in the rough zone and I punch it it smooths out and runs fine, I've tried injector cleaner (Techron), premium gas, but it still does it....
View 2 RepliesI just bought my first truck ever, ended up with a 2002 F250 SuperDuty V8 5.4. I'm fairly handy with vehicles but can't seem to figure out the issues I'm having. I searched the threads and have tried a number of this solutions, but to no avail.
1) The truck runs smooth above roughly 1700 RPM, but between 1300&1700 there is a distinct stutter and shaking of the entire truck. Although the check engine light does not come on the Scanner indicates a misfire in cylinder #3 and I've replace the plugs and coil, but it's still there. Fuel filter has been recently replaced and seafoam run thru the tank and vacuum line. The mechanic at the local mom & pop shop said it is most likely a damaged valve in #3. Am I missing anything? Do you think a valve job is necessary?
2) When I got out of the truck tonight the radio stayed on, I tried the WD-40 fix (no luck), additionally checked the fuses (all in proper condition). Not sure if this relates but the auto door locks started acting up as well and the door ajar light stays on all the time. I saw a post about a "VSM" but what or where that is.
I have a 2005 325xi BMW with 31,000 miles I get regular oil changes. Recently the engine seems to be running a little rough. The other day, after driving about 15 miles, the car started shaking and getting progressively worse. At first it seemed like the tires, but later it seemed like the engine. Also, when I accelerate, it seemed to get more rough, but again, not all the time. Last night, it was the worse yet. After I left the car for 2 hours, it didn't happen right away. Then it did again, but with 2 more miles to go til home, it stopped! Not sure if it's the fuel pump, fuel filter or even something with the wheels (sway bar?)?
View 10 RepliesWife started the car, then shut it down to come back in the house and the A/C blower kept running.
With engine running, all HVAC controls work normally, but the fan continues to run after the engine is off and the key is out of the switch.
I'll pull the fuse for now but there must be a relay stuck or something.
So I have a 2005 Camry XLE, 3.0 l V6 with 160k miles. The car was running fine, but I decided to change the spark plugs today (overdue).
I went through the headache of removing the intake manifold, throttle body etc and everything seemed to go OK. I reassembled it all and now it won't idle properly.
It seems like a vacuum leak issue to me, but I have double checked the multiple hose connections. I did NOT disconnect the battery at any time.
I can Rev it up to 3 or 4000 rpm and it runs smoothly (all the cylinders seem to be firing) but it runs rough and dies without my foot on the accelerator. Also I noticed the exhaust manifold got cherry red like right now... after only a minute or two of running.
Are there any troubleshooting checks I can perform to narrow down the source of the vacuum leak?
We have a 2005 Prius with 77,400 miles on it. My wife came home from a short trip yesterday saying the engine was shaking the car and the CEL was flashing. About 4 months ago we also had the CEL come on but not flash and it ran a bit rough but not as bad as it is now. I was told by our local dealer that a flashing light is worse than if the light comes on and stays on. When this happened 4 months ago at 74,000 miles the dealer said they downloaded codes P300, 303, and 304 and that I needed to replace all 4 fuel injectors.
I realize that 300 is a general misfire code and 303 is a misfire code for cylinder 3 and 304 is for cylinder 4. After reading some advice on here 4 months ago, I cleaned my MAF sensor, ran some fuel injector cleaner through a tank of fuel, replaced all 4 spark plugs, and started buying Chevron gas. The CEL stayed off and our mileage went back to normal. I thought I had solved the problem but now this after 3000+ miles. I checked all the ingitors, connections, spark plugs, and wires yesterday and all seem to be in good condition. Maybe they were right and the fuel injectors are going bad. I am at a loss as what else to do other than take it back to the dealer now and plan do that this afternoon.
So my wife's 2005 escape currently will not start. It was running rough so we brought it in to the shop to have the codes read. There was a bad MAF sensor code so we brought it home and were gonna replace the part the next day. The next day rolls around and it refuses to start. Swapped out the spark plugs which was much needed, replaced the valve cover gasket, which had also gone bad, and put in a new MAF sensor. It still refuses to start. It will turn over, but never starts. Also, the sound as it turns over doesn't sound right. It's hard to explain what sounds off about it, it almost has a "soft" sound to it. I can try to explain better if needed.
View 6 RepliesMy check engine light came on in my 06 toyota avalon. i had the code read at pepboys and they said it was something like 0300 misfire. i took it a few days later to my personal mechanic and he said nothing popped up when he tested the code. i notice the car (engine) is running a little rough though. What is the firing pattern as i want to try and fix by putting new plugs and coils.
View 1 RepliesMy 05 was running rough and misfiring quite frequently. After much deliberation, I took it in for a diagnostic hookup. The dealer said my driver side cat was clogged. Lucky for me, I was just under the warranty period(79673 miles). I have had it replaced and I can feel a noticeable difference in the way it runs. Could a clogged cat have made it run that poorly or am is it just in my head that it is running alot better?
View 7 RepliesI changed the timing chain, phasers, tensioners, guides, and cam sensors and solenoids about 30k miles ago. Truck now has 170k miles. This past weekend engine started running so rough, it had the whole front end shaking. Threw 8 codes..1 bank..lean, bank 2 rich, timing retarded, cylinder G and F misfire, and more codes. It seems to have jumped timing pretty bad.
View 1 RepliesMy GX had developed yet another issue. To start off my car has an exhaust leak presumably at the head. Thats what i been told. This condition would throw a P0430 code ( catalyst system efficiency below ) once or twice a week, which id just erase with my plug in tool. Im not sure if the new developed issue is related to it, but now the engine is running rough especially noticeable between 1000-2300 rpm. Feels like misfire. When driving i can feel a drone or a frequent shake if rpms are in that range or when unloading the motor and rpms are dropping. No codes! Timing belt was changed at 90k miles car has 150k now. Not sure if its due for another one now and this can be the cause.
View 8 RepliesMy wife's car suddenly started running rough. 2005 Taurus, 6 cyl, 3L, OHV, 83K miles. CEL came on and code came back as "P305 - cylinder 5 misfire detected". As a side comment, her tachometer has been fluctuating big of late as well.
View 2 RepliesOur 2007 Avalon with 65xxx miles on it was skipping and running rough this morning. Running a scan with my VAG-COM gave me these codes.
Mode 07: Pending emission related fault codes Address 7E8: 2 Faults Found: P0305 - Cylinder 5: Misfire Detected P0355 - Ignition Control Circuit for Cylinder 5: Malfunction
Would you say it is time to replace the Coil for this cylinder, or should I do more troubleshooting first?
From what I've read on this forum, it appears cylinders 1, 3 & 5 are at the rear of the engine and are a PITA to change. Is there a good write-up or video on how to change these at the rear of the engine?
Code says P1121 Accelerator Pedal Position Sensor Range/Performance Problem. I heard that was wrong and its really coolant control valve? The battery drains fast and the can runs like crap. Would this code be doing that to the car?
View 18 RepliesSo I have been fighting a rough running, missing problem. My truck started running rough one day on the way home. I got it scanned, it showed injector contribution balance 1&2. Made sense to me that it threw those codes. I replaced 1 and 2 with oem replacements. Got that all done, truck still ran like crap. I changed fuel filter with motorcraft ones and drained the water separator. That didn't work. I am getting it scanned again, so i will have codes shortly.
Also, for a while it would run with absolute no problem. It was intermittent like that. Run bad run bad run bad and then one day run flawlessly. I though it was electrical. Checked all the common places for chaffing, saw nothing. Even did the wiggle test while it was running, no change. But it hasn't been intermittent for a while now.
I have a 2005 yukon xl with 55000 miles and it makes a squeaking noise when accelerating. When u let off the gas it goes away. If u r in the driveway and let it roll it will make it. It doesn't do it when u put it up on jack stands and have all 4 wheels off the ground. It sounds like it is coming from the middle of the vehicle.
View 1 RepliesI have a 2005 Yukon XL. In Oct 2010, my front A/C started blowing hot air even though it was set to cold. Nothing has happened since then, except that about a month ago, the A/C in the front stopped working but the A/C in the back still works great. The one in the front works when it wants to (once or twice in a week) and when it does, there is cold air coming out of it. We live in FL so it is getting pretty hot to not have A/C and we are going on vacation soon. What can be causing my A/C to work like this?
View 1 Replies2005 6.0 133000 miles... Truck has been stuttering and running rough for about 2 weeks, warms up and is somewhat better. Would stutter in the RPM range of 1600 to 2100 RPM, can push down on accelerator and power through it with no problems. Checked codes and got PO269 Contribution Cylinder 3. Changed all filters and oil change along with a bottle of hot shot secret in the oil. Truck is now blowing blackish grey smoke under throttle and when idling that smells like fuel. No coolant in oil, and no oil in coolant.is the injector shot, or injector sleeve bad?
View 6 RepliesI have a 2005 Yukon Denali XL. The low beam headlight on the driver's side will not work. I replaced the bulb. Still won't come on. We had just driven the truck up the Dalton highway (The rough road seen on Ice Road Truckers).The passenger side low beam works fine, and all the other lights work fine.
View 1 RepliesMy transmission seems to stay in lower gear than needed on highway. Tach speeds are 2500 @ 55 and closer to 3000 @60-65. Is this normal?
View 5 Replies2005 F250 6.0L ... My truck is running really rough when the engine isn't all the way quite warmed up. once the truck is fully warmed up to normal running temp it runs good. I am getting four engine codes. P0672, P0673, P0674, P0676 These codes say 2,3,4, and 6 glow plugs have a open circuit. Can this be the cause of my problem?
View 7 Replies