I just bought a 97 Dakota Slt, V6 automatic transmission. It had an intermittent. Skip, diagnostic showed a misfire on #5, changed plugs, cap, rotor,wires. Still has skip when cold and under a load. All cylinders seem to be firing. Thinking it could be injectors?,coil?
View 1 RepliesMy 09 Forester continues to skip although I have changed spark plugs and wires. Always reads misfire on 03 and 04.
View 2 RepliesI have a 99 Volkswagen Passat 1.8 Turbo Automatic AEB engine. I recently did a rebuild on it and ever since I keep getting this code P0301 that says "cylinder 1 misfire". The engine is also running rich and the spark plug in cylinder 1 keeps getting gummed up. I've changed the coil and the spark plugs and the injectors and it works temporarily but then the problem keeps reoccurring.
View 7 RepliesI posted this problem several months ago about a p301 code that my 2007 Prius has been generating. I eliminated all the easy stuff... plug, spark unit, fuel injector. Over the past year since I've had the car, the CEL light has gone on for a couple months then shut itself off for a couple, then back on ... probably has shut itself off 3 times in the past year, each time staying off about a month or two before coming back on. Some background on the car, supposedly the PO hit a rock and damaged the motor about 2 years ago and had the short block replaced.
Anyway, the CEL has been on again for about a month, and I got a notice for Illinois emission testing, so I decided to take it in to the dealer and have him do a diagnostic so I can get the emissions passed. After an hour and a half of testing they told me that the best they could ascertain, the car has been submerged in water, as there is a lot of rust in areas that never get any rust, and they think there's a short somewhere.
The service manager at the dealership said if it was his car he wouldn't spend the money for another 5 hours of trouble shooting, and if the car runs good he'd just drive it as is. They cleared the CEL and the service manager just charged me for an oil change as they caught a recall on the steering that hadn't been done and figured he'd let me slide on the hundred for the diagnostic.
I was running in a track day at Sebring today and missed a shift. Rookie move...the car eventually went into limp mode. I took the car back to the pits and scanned the codes. Limp mode was confirmed in addition to a cylinder 4 misfire and a random/intermittent misfire. Cleared the codes and went back out; couldn't even finish the lap before the car was thrown back into limp mode.
I was able to hobble home by keeping the car out of boost and started trouble shooting. So far I have ruled out spark plugs and coils. Should I be looking at the injector next? Any chance I bent a valve? The misfire can be triggered by putting the car under a load and bringing it up to 5,000 RPMs or higher.
My 2003 Silverado 5.3 has an intermittent CEL. I plugged in the reader and found code P0304, misfire #4 cylinder. I changed the coil, swapped the spark plug and wire from #2 cylinder to see if the code would follow. Nope, didn't follow. I swapped the injector also, same results. My daughter decided to borrow the truck and drove it so low on fuel that the low fuel light came on in the drive way. I added about 4 gallons of fuel and now the light went off. I started the engine after a jump start, and the engine really runs rough and now won't stay running. I am thinking that the fuel filter is probably needing changed because of how low the fuel.
I haven't checked the fuel pressure yet and will do that today. Now, what really puzzles me is the intermittent part. Sometimes it will run with no problem, but then the CEL will come on and the fun begins. The Chevrolet dealer says it's caused by the valves turning in the head and when it reaches a certain spot, it detects the misfiring #4 cylinder resulting in the CEL. If I pull in the driveway with the engine missing, go back out in a short time, start the engine and it runs fine. Same thing if it's running fine and I can start it and the CEL blinks and it begins missing, but may stop and run fine. I am stumped and not so sure about the turning valves.
This 2002 Explorer 4.0L Has a skip/misfire BUT doesn't trigger a code. It doesn't seem to do it all the time. It starts rough at times.
View 4 RepliesI have a 2004 mazda6 v6 3.0 and it is throwing codes for o2 sensors. No cat but there is a code for heated o2 sensor. Not to Familiar with Mazda's but when accelerating hard below 3000 rpm it seems to misfire or skip. Only when accelerating hard though. If just barley pressing the pedal and slowly creeping through low rpms it runs fine. Anything above 3000 rpm it accelerates great.
View 8 Repliesvehicle 1997 dakota engine 3.9L w/autotrans.
The vehicle exhibits an intermittent high idle. I have replaced the usual IAC stepper motor and checked the tps for proper function, also completely cleaned, inspected and relubed the throttle body and linkage.
According to my Inova 3140, there are no codes and the temperature sensors and tps percentage are reading correctly. Also the battery and charging system are functioning correctly.
I do not have bi directional capability or the ability to monitor any of the pid'sOne other thing is that she also has a slight rough idle, but that could be the 200,000 miles.
06 F150 fx4 has cly 7 miss fire cly 6 has oil on plug .Check engine light comes on only if you step into the gas, The oil was low. If you drive normal the check engine light does not come on, but you can fill the miss when in gear. Change the plugs an coil add oil still no change.
View 4 RepliesMy 2005 Dodge Dokota 4.7L V8 152,000 miles has an intermitent check engine light (CEL) code P0420 ('catalylst efficiency') that turns itself off.
1) 151,000 CEL on, code P0420, checked, cleared at dealer.
2) 151,948 CEL on, code P0420, checked, cleared at dealer (Cat Conv).
3) 152,200 CEL on, code P0420, checked, cleared at local auto parts store.
4) 152,597 CEL on. No checks.
5) 152,815 CEL turned off on its own
6) 152,849 CEL on. No checks.
7) 153,137 CEL turned off on its own.
Twice in this time CEL has came on soon after a fill up from near empty.
Engine runs fine, 18-19 mpg highway.
Have seen numerous on-line reports of other possible causes:
a) base engine problems (coolant or oil) -- coolant temp sensor
b) Air in leakage -- air systems or manifold
c) Lazy front O2 sensor
d) fuel pumps
e) timing or misfire
f) what else? - (gas cap, other...)
What to check first or categories to eliminate?
My 2005 Dodge Dokota 4.7L V8 152,000 miles has an intermittent check engine light (CEL) code P0420 ('catalylst efficiency') that turns itself off.
1) 151,000 CEL on, code P0420, checked, cleared at dealer.
2) 151,948 CEL on, code P0420, checked, cleared at dealer (Cat Conv).
3) 152,200 CEL on, code P0420, checked, cleared at local auto parts store.
4) 152,597 CEL on. No checks.
5) 152,815 CEL turned off on its own
6) 152,849 CEL on. No checks.
7) 153,137 CEL turned off on its own.
Twice in this time CEL has came on soon after a fill up from near empty.
Engine runs fine, 18-19 mpg highway.
Have seen numerous on-line reports of other possible causes:
a) base engine problems (coolant or oil) -- coolant temp sensor
b) Air inleakage -- air systems or manifold
c) Lazy front O2 sensor
d) fuel pumps
e) timing or misfire
f) what else? - (gas cap, other...)
What to check first or categories to eliminate?
The engine of our 2003 Camry (4 cylinder, automatic) is making a loud rumbling noise when stationary, both in drive and in park. The rumbling can be heard and felt, especially via the brake pad, and it persists when the car is driving at below highway speeds.
View 2 RepliesMy 2003 Dodge Dakota does not shift properly sometimes going into second gear and it only happens in second gear. I have to lift my foot off the accelerator for it to shift into third. If I don't it just screams at a high RPM and sounds as if it is about to blow. It has a hard time making it up a small incline such as an off ramp. Truck will not shift properly when going up grade. Engine will rev at 4500-5000 rpm but will not shift until I slightly release the gas pedal. Truck will also perform multiple hard up shifts whether in cruise control or not in cruise control, going upgrade. Took the truck to the dealer reprogrammed the computer with a "flash update" that was no luck. Not once has the ENGINE LIGHT ever come on.
So a lot of the comments that were presented to me I have done. Here is a list:
Changed govner senors and solenoid. Did not work.
Checked for exhaust leaks and other leaks. No leaks.
Checked all vaccuums. No problems there.
Had engine checked and dyno tested. No problems there.
Had transmission rebuilt. Same problem. (dealer did work)
Had new transmission put in. Same problem. (dealer did work)
Also, sometimes when I put the truck in reverse, it seems to about to stall, but it doesn't. It also does it sometimes when I put the truck in drive it seems that it wants to stall.
I just recently learned that my truck has a Transmission computer module, Transfer case computer module and of course the main computer. Is there a way to test those modules out?
I noticed a humming like noise when my transmission is engaged. I looked under the truck and saw a wet spot on the transmission(leaking)It is a manual transmission 5 speed Dodge Dakota 2001.
View 2 RepliesWhen I start the truck in cold weather, the transmission doesn't want to shift out of 1st gear. Some time it take driving it a 1/8 of a mile before it shifts.
What is wrong / need replaced ? I was told to shift it thru all the gears before I move it to warm up the transmission fluid ? I'm thinking some sensor needs replace ???
When cold the trans works fine for about 15 mins, then its like you put it in nuetral. No forward no reverse. A friend suggested changing filter/fluids so I did. Worked great for about 4 hrs then same thing. Leave it sit for a few hours and it works good for about 15 mins then nothing. Should I try another filter or something else?
View 1 RepliesI recently purchased a 2005 Dodge Dakota SLT with 50k on it. The truck is in great condition inside and out. I have noticed depending on certain days, different weather conditions that it will make a squeaky noise when going over the bumpy roads. First thing that came to my mind was the sway bar end links. I purchased them from NAPA and installed them. Still the truck is making this noise. What it can be? Almost sounds like it is in the rear of the truck but hard to actually pin point the location. I have tried with all windows down I cannot tell.
Sound is exactly like this video: [URL] ....
I have a 2000 dakota in the morning after the first start, moving foward the truck rocks and feels like trans. slipping. After 5 mins, just fine. Change the Trans. Ffilter?
View 1 RepliesIts not the spark plugs or the coil. What else?
View 3 RepliesSo i got a CEL that said that cylinder #4 is being lazy. How do i figure out which is cylinder #4? Do I count them from left to right or what?
View 2 Replies