I have a problem with my 01 santa fe. When I start it the engine runs rough and when u try to give it gas it pops or backfire through throttle body and air intake tube? Checked the timing belt its ok hasnt slipped.so im stuck at this point.
View 8 RepliesWhen firing up the engine cold it runs really rough, smells very rich all the time, even warmed up. No codes set, fuel trims are within 5-10%. I've replaced the front O2 sensor, swapped crank & cam sensors, Map sensor (have lots of spare parts) & I'm sure there was more things I've changed but can't remember. I have a snap on scanner and everything is within parameters.
I have not checked the EGR valve or solenoids yet. It's a 2006 Santa Fe 2.4l 5 speed, new timing belt & balance belt replaced when I dropped this engine in. Is there a common problem with these that I could begin looking for?
Recently replaced plugs/wires on soon-to-be 10 year old '04 SF 3.5L (157K mi.) for the first time.
Plugs were OE Champion Platinum and all 6 looked identical except for excessive gap of .010 +/- due to all the miles. Replaced plugs with same as OE. Old plug wires looked good, but replaced them with aftermarket wires ( fit was as good as OE). Also replaced plenum gasket.
Problem is: engine runs rough at idle and high rpm and appears to be mis-firing. CEL is off and code reader shows no Trouble Codes stored.
I recently replaced timing belt and balance belt on my 2004 santa fe 2.4l and now the engine runs like crap and shakes badly. I went over all timing marks again and again and I am at a loss.
View 9 RepliesI have A 2001 Santa Fe. The check engine light came on about 3 weeks ago and the car was still running fine up until the last few days it felt a little sluggish. Today I got a little muffled backfire noise. It was like a putting noise if I pushed on the gas to hard to speed up. The car has 95,000 miles on it.The car starts up with no problems and doesn't stall. Its A 6 cylinder All wheel drive vehicle.
View 10 RepliesI have a 2003 Volvo S40. I just replaced the battery, spark plugs, coils, fuel filter along with a fuel system flush. Because the car was running very rough. It's been 4 days since i got it back from the shop and now my car won't start unless I give it gas. The car won't stay on and it smells like it's running very rich.
View 1 RepliesMy '98 4.0 has 213k on it and the other day I started the engine and the jeep started shaking like crazy. Eventually the engine quit and refused to turn over so I looked under the hood and quickly discovered the problem, a deteriorated rubber elbow on the left manifold. The elbow connects to a threaded breather type valve in the manifold and has a thin piece of black plastic routing to the purge solenoid next to the left fender/air box.
When I removed the rubber elbow from the manifold the engine eventually turned over and idled fine, I then headed to autozone and found replacements of the same diameter, I cut them down a bit to match the length of the originals. Since its been a while I changed the plugs and wires, coil pack along with cap and rotor while I was at it. I replaced one plug and wire at a time to ensure I didn't mix things up, same goes for the cap. Now the jeep seems to take a few more seconds to get started but once it does it idles fine.
Now when I hit the gas hard the jeep will hesitate and then backfire. If I'm smooth on the gas the jeep drives good, whether city or highway. When coming to a stop the jeep will sometimes buck slightly like it wants to cut but doesn't. The backfire sounds like its coming from the air box and oddly enough, my aftermarket radio no longer plays in the accessory position, probably a separate issue. So far there's been no check engine light.
I really need to keep this jeep for a few more months and I would hate to put big money into at this stage.
I have a 2000 Ford F-250 6.8 v10 that is running rough and cutting out when I give it gas but I can turn the key off and turn it back on and it will run right, what it could be?
View 1 RepliesI have a 2001 Toyota Sienna xle that started running rough when the weather turned cold. When started, the car idles very high and will not shift properly until it was been running for around 5 minutes. After that it will run well for about 10-15 minutes and then begin to run rough or poorly. The problem is very noticeable at low speeds and when stopped. It never actually kills, but it feels like it is going to. At high speeds it is less noticeable but occasionally you will feel it jerk or chug like the transmission is slipping or a belt or something.
I took it to a mechanic who checked the codes and found that the ignition coils were supposedly bad. I say supposedly because they replace three of the ignition coils and the problem still persists. I then took it back to the mechanic who then told me it was the oxygen sensor. The o2 sensor was replaced and the problem is still there with no noticeable improvement. I again to it back to the mechanic who tells me that they scratching their heads.
I have done some looking around on the internet and have found some discussions that seem to have some promising leeds and actually last weeks car talk show had a caller who described a similar problem. The guys told him it could be a oxygen sensor but they thought a better possibility would be EGR valve or a vacuum leak. Not sure if this sienna has an EGR, but I plan to suggest looking into it to the mechanic. Also, I found some discussions talking about the idle control valve and the engine control module.
Well today I have moved on to the next project on my 02 v6 4X4 Santa Fe, which is the rough running. When I got the car, it had CEL with codes for misfire #5 and lean condition codes. I noticed the wires were in need of replacement (one had black tape wrapped around it) so changed the plugs and wires. The 2 hoses, one that goes between the valve covers on the pass side and the hose between the valve cover and throttle body on driver side were both cracked so replaced them along with a few other vacuum lines, just because I had access to them. Cleared the codes and it still runs like crap, but after 112 miles, town and highway driving, there are no CEL codes. When its first started it idles at 1500 and sounds like its missing and has very little power going down the road. When it warms up seems to run a bit better but still nowhere close to what it should. Equal compression on all 6 cylinders and has power to all 6 injectors and tested to be sure there was a pulse to them as well. Coil packs all tested well. the exhaust is in bad shape and don't know if that would have any effect on how its running.
View 6 RepliesThis weekend my CEL went on and stayed there. Everything seemed otherwise fine until yesterday, when the engine started running rough (like it is missing) and the CEL will flash on and off periodically. When I got home, the exhaust smelled like gas. I have an appointment with the dealer one week from today, and am driving my "spare" car in the interim.
View 21 Replies2001 Santa Fe with 2.4 engine auto FWD 198k miles. When it is started first in the day, the engine sounds good and shifts well. After a few minutes and also after stops, first gear works well but then the following gears do not work well almost as if the engine and the transmission quit talking to each other. Traveling at 60 mph starting up a medium hill, the car downshifted and could not pick a gear. Although I pushed the pedal harder, the car did not respond rather continued to slow down. It acts like I lose 2 of the 4 cylinders in all cases. I replaced the spark plugs and two of them had oil on top of the plugs and also all around the threads. I replaced both coils thinking that one of them was the issue but no change has been observed. I replaced the throttle position sensor; no performance change. I do not believe it is the transmission as I have not notice any clunking, or bad shifting when starting out. While coasting at 40 mph in neutral and my pedal pressed at a certain position, the rpm gauge fluctuated from 3k to 3.6k many times for the duration of 20 seconds.
View 2 RepliesMy 03 Sante Fe is running a little rough and is stalling. My Mechanic said this P code was going to run me $1300. I'm not very mechanical , but this just seems very high. He said that aftermarket sensors would not work and only Hundai parts for the fix.........
2003 Sante Fe, LX, 3.7 l engine
So I was driving my 2001 1.8t last night and put the pedal to the floor to make a yellow light and the check engine light began to blink and the engine started running very rough ever since. It idles very rough and it seems like I have lost a lot of the power.
View 7 Replies1998 Nissan Maxima had a check engine light come on and started running very rough. I took it to get a code read and came up with P0320 and P0325. I'm not worried about the 0325 since that's a knock sensor. 0320 is a misfire on cylinder 2.
With the car idling, I pulled the power connector from coil pack 2 to see if it made a difference in the idle - nope. I did the same for the other cylinders, and each responded with a noticeable change in the idle, which was remedied when it was reconnected.
I moved the coil pack from #2 to #4 (swapping them) and the same problem existed - idle was rough and didn't make a difference when I pulled the power on 2, but it did on all other coil packs. So, it seems the coil pack ins't the problem since multiple packs don't seem to make 2 work, but they work on other 4 and 6.
I then pulled the spark plug from cylinder 2, it was very black and looked in bad shape. I replaced it. Still no love.
I then put a spare plug in the coil and was able to see spark as the engine ran, so it seems that the coil pack at 2 is getting juice.
So, I have gas (big odor when the car is running - seems super rich) I have spark. Still running very rough and the 0320 code remains.
I have a 2008 Kia Rio, 4 Cyl 1.6L, and recently the check engine light came on and the car started running real rough after getting the timing belt replaced at firestone. I took it back to Firestone and they said that 2 of the cylinders where misfiring and i need to replace the ignition coils and the corresponding spark plugs, but that i also want to get a catalytic converter cleaning or flush or something like that because of the unburnt gas that was running into the converter. Is this true? They want to charge me another 100.00 for the cleaning on top of the 300.00 to replace the 2 ignition coils and spark plugs, should i get this done or can i clean it out myself?
View 6 Replies2003 Elantra gt 90,0000 miles manual transmission. Rough idle under 1000 rpm it smooths out completely above 1000 rpm.
Also the engine makes a ticking noise from a cold start up. It stops making the ticking noise after 1500rpm or when the engine warms up.
Occasionally the car has a sputtering backfire. This happens when I park the car after being on the highway.
Replaced the plugs, wires, and the pcv valve. Dropped the oil pan and it and the oil pump pick up screen were clean.
The only check engine light to come on was for the speed sensor. It has since gone out on it's own.
Ok on the way the my 1997 f150 4.6 L 180,000 check engine light started flashing and running rough and then the light went off, Also we took the Aftermarket Dynomax muffler off of it earlier today if that makes any difference, it still has the Cat Converter, New Plugs and Napa Wires.....
View 12 RepliesI have an 07 with the 3.3L and on start up the engine runs really rough and while driving when warm it keeps losing power with a regular rhythm. It almost feels like and injector or ign coil is dropping out. I have no CEL and have recently changed the spark plugs and rear upper O2 sensor.
View 5 RepliesWell it finally happened, a couple of weeks ago I was headed to an MX race and my check engine light came on and it started running rough. Long story short a piece of an exhaust valve broke off and went out through the head. Dealer has been great even though I was 300 miles from home and they did get me a rental(small POS SUV). Truck was supposed to be finished this week, but now they are saying the head gasket is on back order and they probably won't have one until the middle of April......... I can't be without my truck that long, but not much I can do. By the way truck is completely stock with just under 20K on it, and I have never had any issues with any of my Ford trucks or Ford diesels, even my old 6.0.
View 7 RepliesI have a 2001 F350, 7.3. My service engine light came on and immediately the truck started to run rough and lose some power. I've checked the under the cover connections and they were both connected, I replaced the cam position sensor and I still have the same problem. The worse part of the hold thing is that there are no codes stored so I'm flying bind. Where to go next.
View 8 Replies