misfire

I have a 97 explorer with 197k miles on it. I just preplaced the alternator and battery in December. Here's where I messed up. I have an oil leak-- I took it upon myself to put some oil in full synthetic. I did for 3-4 months. I now know this was not a good idea. When starting the vehicle after...

Hi all, I've trawled through the posts but can't seem to find anything that may help my problem. Ive a 2013 Explorer 3.5 V6 non turbo 142000, had the Check Engine Light appear and after checking the codes had a P0302 misfire on number 2. Changed all plugs (they were due), no change in code...

Hi all, new member here. My wife has a 2014 PIU with the 3.5l Duratec, 120k-ish miles. Shortly after she got it, the vehicle started having either surges or chokes (I can't tell) under low or moderate acceleration. Idle is nice and consistent, and WOT is pretty smooth. So at no load, or high...

2009 Honda Civic LX 1.8L (R18A1). 294,000+ miles I've noticed while scrolling through torque pro that my Short and long term fuel trims are the same and excessive at -71.88%. it throws a P0420 code and sometimes a P0302. I have recently replaced plugs and the P0302 hasn't come back. Odd issue...

2005 Sport Trac 4.0L has a ruff idle on a cold start up. It's almost sounding like a misfire. Engine also seems to idle too low after cold start. 400-500rpm and feels like its about to die. I can press on the gas a bit and it will get stuck at around 1000rpm for a min or 2, then it will idle...

Hello All, I've been a lurker on these forums for awhile and always found them helpful, but this issue has been stumping me for awhile and I want to verify with others where I think my next step is. Please read through everything if you have time to understand what I have done and things I've...

Hi everyone i have an Explorer 2010 with 150k miles on it the car drives fine most of the time but sometimes it does a weird thing when it starts kinda shaking for example last time i went on a road trip and the road was generally a slight uphill road but at some point there is a long uphill...

So a few days ago, my 98 explorer started struggling at idle. I'll come to a stoplight, and it will dip down to like 500rpm and struggle to stay on. Last night after work, I got 2 misfire codes for cylinders 3 and 6. Today I changed all of my spark plugs and the wires. Cleared all the codes...

Hi boys, got a weird one today. 190k miles. Tranny has ~130k. 05 sport Trac XLT. Stock engine 4.0L SOHC. I replaced the fuel filter, or tried to and couldn’t get the line going to the engine off. So I gave up, put it back together, and decided to drive it to a professional to get it done...

I bought a 5.0 AWD Explorerin the late summer, 2020 to replace the '04 that needed timing chains. I love 302's, but I wish I would have just spent thatmoney fixing the '04 Explorer. Since I got it registered, it has been nothing but trouble, which shouldn't be normal for a 5.0. It has been...

I have taken my Explorer to Ford 3 separate times for the same issue. During the fall was the first time and these codes came up, Ford dealer was told to replace the spark plugs and coils on 5 & 6 cylinders. Explorer went back in the next month with the same issue, this time Ford dealer was told...

So a couple nights ago I was out driving and my 2000 Explorer with the 302, and it started misfiring and threw code P0307. The next morning I started the normal checks. I swapped the ignition coils around thinking the coil was going out. That didnt change the misfire. Changed the spark plug...

Trying to help my brother out and just swapped his motor out for another. Everything seems to be correct. Motor will idle good and rev up . Once its under load codes will be thrown causing loss of power and misfires on 4/5/6. Replaced spark plugs swapped out coils from old motor and still...

Hey all, Been a while since I've been on here, but you've helped me in the past so why not try again. My 96 4.0 was running great with almost 150k on it. I went to dinner one night and stopped by my buddies house on my way home. When I started it up, could almost immediately tell is was...

Hello again, So, I'm back with another question. Could a broken, open, EGR tube cause my Misfire issues? I assume that the answer is yes, however I have seen many, and I mean many, different answers about the subject in my search, and figure the Explorer Forum should be my final...

okay, 2003 Explorer XLT 4.0 SOHC. Truck sometimes would misfire when started cold in the morning after sitting overnight. Always stopped with throttle and when warmed up. Just one cylinder, occasionally would set CEL and always P0306 and P0316. Kind of forgot about it because it hasn’t been...

Hi all...Im helping repair my sister-n-law's 2006 Explorer XLT 4.0 sohc v6. Its got "running lean" code and "random multiple misfire" code. Ive replaced the ignition "coil/box", intake o-rings, fuel filter, plugs and wires. It starts up just fine (when cold), then upon warming up, starts...

Hey there, So I can't seem to figure out the issues with my truck. I recently bought a 2000 Ford Explorer XLS with the 4.0 OHV and Auto 5spd with OD. Since owning, I've enjoyed the truck, and it is a very capable machine... When it is running right... The vehicle has a very serious misfire...

Hello, A little backstory to start, we bought the Sport Trac new from the dealership (12 miles on it). We did the normal tuneups/oil changes and basic maintenance. At around 100k the engine decided to die on the way back from a vacation with no warning, the check engine light came on and 5 secs...

I have a 92 Explorer XLT 4x4 with Apprx 211,000 miles.No CEL. recently its been surging between 35-45 mph if im accelerating. it almost refuses to stay between 1,000 and 2,000 rpms only during that speed. I changed the plugs & wires about 800 miles ago and it fixed it. but the surging has come...

Hello all, I have a 2001 explorer sport that after bouncing around for 17 years is starting to get some wear and tear. I have a few issues that I need help figuring out but my BRB is still trucking on well considering. I have some sort of exhaust leak that started giving me issues when...

My 2001 4.0 explorer has developed a misfire , it's throwing evap codes as well , it's got all new plugs and wires and a new coil pack so I believe the misfire could be caused by the evap purge valve or evap sylnoid , what do you guys think ?

Alrighty a little background. I recently put the following new parts on my 1999 4.0 OHV Explorer 130 Amp Alternator Upper Intake Manifold Fuel Injectors Fuel Rail Gasket Replaced the EGR Tube O-Ring The first time I put everything back together my truck ran with no knocking at all. The...

1998 Explorer Sport 4x4 104,000 miles 4.0 OHV 5 Speed Automatic I've had a problem with a serious misfire that randomly started a few weeks ago.There are NO codes or CEL Truck starts fine and idles good, I can accelerate at grandpa speed and all is good. As soon as I open the throttle 50% or...

2002 Ford Explorer with 150k miles. Have done maintenance mostly myself. For last 2 yrs the check engine light has been on and would occasionally go off. Code check said was an o2 sensor so I blew it off. As of a month ago I noticed lack of power while driving. Pedal down to floor and car...

Hello, My misfire is acting different than any other one I have checked on this forum. When I start it cold the engine shakes really bad in park, when I shift into gear and put a load on it the shaking is much less. when idling at a stop light there is just a little shaking but when I give it...

Alright so all of the sudden my 00 Explorer (4.0 SOHC) has been running like garbage. It started when one of my cats got plugged (it sure shined a nice cherry red). Since then, I have replaced plugs, plug wires, and coil. They didn't help so I replaced the Crank position sensor now too. The...

I have Bank #1 - Rich and Bank #2 - Lean Codes! ???? P0300, P0301, P0302, P0303, P0316 Codes were corrected by replacing the plug wires and cleaning/gapping the plugs. I have new plugs on hand and will replace them. I used to think I was fairly savvy at diagnosis, but those days are gone...

So heading home from work today I got a check engine light and pulled into the local auto parts store and had it ran. Code was P0303 which is cylinder 3 misfire. Already had plugs and wires ordered for routine maitanence but won’t be here until the 10th. Issue is I need it to drive to work each...

Here is what I got: 2006 Eddie Bauer 4x4 4.0 Sohc v6 121,000 Miles Here is what happened: Vehicle overheated due to thermostat housing melted and seam separated. Here is what I've done: Replaced Thermostat housing Radiator Flush and fluid replace Oil Flush and fluid replace Changed PCM,spark...

Hello world, I just recently went through changing all the spark plugs and wires in my 2000 Ford Explorer 5.0. One week later I'm leaving work and 2 minutes down the road the truck bogs down and shuts off. Takes me 20 minutes to get started again after multiple attempts. Finally got started and...

I stuck this post here as I think I am out of the realm of the “Stock” portion of this forum: I’ve got the build listed on my website (MidwestNomads) and over on Pirate 4x4 if you want the full on details of the build. In a nutshell, the motor is the only part that hasn’t been touched...

So, I'm a Ford guy, and got my hands on a 2004 Explorer Sport Trac. Put on some bells and whistles, including 2 seperate sets of lights. I originally tapped into fuse #25(cluster and 4x4), which I am now severely regretting, as it has caused a parasitic drain I must hunt down. Once the...

My 4.6 XLT 2003 has codes p0306 and a p0316. I have put on a new dorman intake manifold, new motorcraft plugs, new cop boots. I have moved the cops and fuel injectors around but the misfire stays in cylinder 6. Pulled all plugs and all look good. Compression for 1-4 is 190psi, 5-8 170psi. I...

About two months ago my check engine light came on on my '05 st (165,000 miles) and I got the codes pulled and it was for misfires. Put it in the shop, had all the plugs and wires replaced, as well as new coils, and ran premium gas and fuel treatment in it for a few weeks. Ran fine for about a...

Have a 96 Explorer with a 5.0 It has codes P0446, P0133, P0141, P0307, P0174, 588-back bank2, 538-front bank 2, 673-back bank 1 and 374-front bank-1. O2 sensors were replaced last week and everything was running fine. Yesterday, a fuse blew and was fixed this AM it drove fine for about a 45...

I'm driving a 2007 Eddie Bauer with 414,000 miles on it. It has been a company car with regular maintenance and mostly interstate use. It's really in great shape for the miles. So it started missing really badly and I went and got the code checked at o'riellys. Cylinder 8 misfire and both...

Been trying to get to the bottom of a bank 1 misfire. Actual codes are for cylinders 1, 2, 3, and random misfire. All happening at different times. Car seems to run fine until 45-50 mph and trying to accelerate, maybe somewhat of a lumpy idle, and/or odd lumpy acceleration. Doesn't feel as...

I take care of my Explorer religiously, because I need it to last me another few years at least. I have a 2003 Eddie Bauer AWD 4.6L V8 with 169,5XX miles. Anyways, I left for Kansas City this weekend but prior to my departure, I had a low gas tank, and when I say low, I mean about 1.5 gallons...

2003 Ford Explorer Eddie Bauer Edition 4.6L V8 4x4. The stalling issue is most common at stop signs, when the vehicle is in drive and idling at operating temperature. It has occurred in park while cold, however. I immediately thought IACV since Fords have that issue, and it was shuddering a...