Ford - Mountaineer :: At 40 - 60 MPH Bucks And Misses?

My wifes 3V mountaineer has had a bad miss for a long time now. It seems fine until around 40-60 mph where it bucks and misses bad. I replaced all the plugs and it went away for a while but its back again. So far Ive replaced 3 of the coils with the accel coils but its just a shot in the dark really. Any easy way to check the coils or cylinder to see which one is truly the culprit?

View 9 Replies

Ford - Taurus :: 2007 Bucks In A Snow Storm

I have a 2007 Taurus and for all intents in purposes the car runs great, expect during a snow storm. I drive 30 miles on the hwy too and from work. During a snow storm no matter how bad or if snow is blowing or on the ground my car bucks. I don't know how else to explain it. It is like the transmission is slipping but I know that it isn't because it happens for only a split second. It almost seems like the car wants to shut-off or the brakes are grabbing. This will happen the entire way to work or home every few miles but only during a snow event.

View 5 Replies

Ford - Escape :: 2004 V6 Misses / Bucks And Jumps - Multiple Check Engine Codes

This is a Ford Escape XLT with the 3.0L V6. I get the following codes - P0316 P0300 P0136 P0305 P0306. Sometimes it runs just fine and sometimes it misses and bucks and jumps. It has been taken to a local shop and they said they found a loose ground at the computer. They said they corrected this and it should run fine. It still shows the same codes and runs like it did before they worked on it.

View 10 Replies

Nissan - Sentra :: 2008 - Bucks During Snow Storm

I drive a 2008 nissan sentra (98xxxmiles). I commute 100 miles daily and have an issue that occurs only when it is snowing. Regardless of how much snow is on the ground, every time there is decent snow fall my car will randomly buck. feels almost as though my transmission slips for just an instant and then regains control. for a while, i had to study this issue before i could fully wrap my head around it. I took the car to my shop and they could detect nothing wrong with the car, which is definitely not the case. I suspect that there is an issue with a sensor or an actuator involved with the overdrive that is having the issue. But I could be wrong.

View 11 Replies

Ford :: Engine Bucks Only Between 1800 And 2000 Rpm

2006 Ford Escape XLT 3.0L DOHC - starts and idles fine. good power up to about 1800 rpm and then again above about 2100 rpm. Problem only exhibits under load (going up hill). Problem does not exhibit in low gears. No engine codes. Replaced TPS. Jumped out EGR to test it - still happened. I could be wrong, but I do not suspect fuel delivery or spark problems because the engine runs fine above 2100 rpm. So, basically I can start up a long hill and everything is fine until I get to about 40 mph (it's an automatic, but I think it's in third gear by now) then the car starts bucking (engine sputtering). But once I get through that, about 45 mph, it runs great - plenty of power, I can race it right up to 70 mph and beyond.

View 12 Replies

Ford - Focus :: 2002 - Surges / Bucks When Driving Between 40-50 MPH

My 2002 Ford Focus ZX5 has had a low idle (not unsteady) for about a year. Just thought I needed a tune-up. Recently, it started surging and bucking between 40 and 50 MPH. Seems to run fine under acceleration, but then when backing off the accelerator, it starts the surging/bucking. The check engine light is on constantly. A diagnostic pointed to the EGR valve, which I replaced, but it didn't solve anything.

View 4 Replies

Ford 7.3L Power Stroke (1999-2003) :: Replaced HPOP Now Misses Or Hiccups While Driving Down The Road

I have a 2003 F250 4X4 crew cab 7.3. It was running great at 244,000 miles. The only problem was the HPOP was leaking, I had done the two upper O rings several thousand miles ago. Any ways after changing the HPOP while driving down the road it would miss at times or hiccup (funny it wasn't doing this before) Also it died a couple times, once at a stop light, had to get it towed home another time in stop and go traffic, this time it started with-in 10 min after trying several times. So I decided to change the IPR, still did the same thing. So I decided to change the CMP with negative results. I checked the ICP sensor it looked good no oil leaking or no saturation. So would it be safe to say I may have gotten a bad HPOP. Remember, I had no problems until I replaced the HPOP

View 14 Replies

Ford - Explorer :: 2000 V6 Lost Power And Died When Driving Down The Interstate Doing 70 MPH

My daughter was driving down the interstate doing 70 mph when her explorer lost power and died. It will not re-start. Checked the DTCs and there were no codes. This same thing happened about a year ago and she had it towed to the dealership. After 3 weeks, they called and said to come pick it up. They said they had no idea what had been wrong but it was running. They replaced crank sensor, cam sensor, cleaned and checked several others an it still would not start. Then one day they sent one of the flunkies to move it back into the shop and he started it up and drove it in! They checked several more things but claimed they really didn't know what was wrong or why it started running. Now it has done it again. I suspect it may be a faulty ECM.

View 3 Replies

Ford Ranger / B-Series :: 2003 - Clunk When Driving In The Snow

I've been dealing with this for 2 years now and its going to snap my axle shaft one of these days. I am scared to take it out in a snow storm because the truck will clunk and then release. Its a split second thing but its enough to notice and make me worry a lot. I cant figure out why and ive done the plugs and wires but that didn't solve the problem. It only happens when its snowing or when I drive though a gust of wind that has stired up some snow. I know it must be something electrical because it only happens when there its cold and wet and not all the time. In the rain it does not matter but when it snows i just wont go out at all. The truck is a 2003 4.0 4x4 with a manual. Not a function of the 4 wheel drive it happened in 2wd as well.

View 14 Replies

Ford - Explorer :: 2004 Explorer - Transmission Seal Blowing When Under A Heavy Load

I'm in a situation where I may be having to tow my 3500# boat/trailer with my '04 Explorer 4WD (this is well within the max tow limit, per the manual). I have the 4.0L with the 5 spd auto tranny and 3.73ls gears. I've towed the boat a handful of times with this vehicle and had a good experience every time. Now I'm looking at this being my primary towing vehicle, towing once or twice a month in the summer. The car only has 48000 miles on the ticker and is in pristine condition, so mechanically it's sound.

I asked my mechanic what he thought of this arrangement and he hates the Explorers, so he's giving a biased response. Have any of you towed something on a somewhat regular basis with this, or a similar, vehicle? Any issues? My mechanic keeps going on about the transmission seal blowing when under a heavy load.

View 3 Replies

Explorer :: 2000 Ford O/D Light Start Flashing After Driving 3-8 Miles From Starting Out

My 2000 Ford Explorer O/D off light starts flashing after driving it after 3-8 miles from starting out. After shutting it off, it resets itself. It seems to stick between 2nd and 3rd (automatic trans) because I get a surge on my RPMs. I took it to two places, spent $200.00 and the problem remains. The tranny shop actually changed a "range sensor" and thought it was fixed. Nope - O/D off started flashing before I even got back home. I've been looking on the internet and it seems that alot of explorer owners have been having the same types of problems. The shops I have talked to have no idea other than rebuild my transmission. It only has 46,000 miles on it! It seems to me that the overdrive is not kicking in when needed and the light comes on.

View 14 Replies

Honda - Accord :: 2000 - Misses Over 3000 RPM

I have a 2000 accord with 2.3 v tec, parked my car last night and was working fine, started it up this morning and the car wont work over 3000 rpms, it idles and works great but when you drive it or push the gas as soon as it goes over 3000 rpms it should like the rev limiter is on, i already cleaned the iac and it woks fine a while ago,can it be a sensor, I thought it was a fuel filter like it was starving for gas but in the 2000 accords its in the gas tank, don't under stand why she runs good up to 3000 rpm then over that she misses . I took out the spark plugs and they were black and sooty, put a spare set I had in her but no change in the way the engine works.

View 4 Replies

Civic - Honda :: 2000 - Squeal While Driving / AC Blowing Hot

I have a 2000 Honda civic ex. A couple months ago while driving I heard a squeal and my AC was blowing hot. I just changed out my expansion valve, drier and compressor but when I hooked up my gauge my low side wouldn't build pressure and my high sat like 150. Finally the low side got to 20 and high about 200. I over filled trying to get low side right and when I did get it to 40-50 my high side would be 300 but it wouldn't hold. I emptied the system but 150 psi is somewhere in the high side and won't get out.

View 3 Replies

Ford Super Duty (1999-2016) :: Codes P0172 And P0174 / Truck Bucks And Coughs / Zero Power When Driving

I have a 2008 Canadian F250 SD 5.4 triton. Its got 224000km on it and began to get the dreaded 5.4 dieseling when hot and idling. I replaced the timing chains, guides, both tensioners and crank gear. I confirmed the cam timing was correct with the crank key at 6:00 and the chains marks on the R and L. I replaced 2 coils on cyl's 2 and 3. I replaced the MAF sensor, fuel rail pressure sensor, cleaned and confirmed working the crank sensor and both cam sensors. I fixed the broken Bank 2 cam sensor wires. I changed the plugs and replaced all 4 O2 sensors.

Now the truck idles great but when driving it bucks and coughs and has zero power. I cant even get to 80km/hr. The computer now shows codes P0172 and P0174 which means the Bank 1 is rich and the bank 2 is lean. The O2 sensors are working and moving around. The back 02 sensors are both reading in the 0.8Volt range but bouncing around. The front 02 sensors are both moving from 0.1 to 0.8 constantly. The long term fuel trims are +9.5% bank 2 and -4.7% bank 1 at idle. When the throttle is off idle they become +25% bank 2 and -25% bank 1 . How is this possible and what can I do to fix this engine?.

View 10 Replies

Ford 7.3L Power Stroke (1999-2003) :: Hard To Shift Transmission After Driving In Deep Snow

It's happened to me the last 3 times I've taken my truck out and drove through some deep snow. I have a hard time shifting the transmission from drive to park. The snow must get packed up under the truck near the shift linkages.

View 14 Replies

Ford Super Duty (1999-2016) :: 2012 F350 Misfiring When Driving During A Snow Storm

While driving into town during a recent snowstorm, my truck started to misfire quite badly. The check engine light started to flash and then remained on as I went to the auto parts store. The code indicated cylinder two misfire. I don't a few things of dry gas in the tank and let it run for a few minutes which seem to solve the problem.

Since then, however,every time the engine gets even a little bit wet it starts to bark again. It usually lasts a few minutes then goes back to normal. Typically, I would have replace the plug wires. When I lifted the hood of my truck I realize I knew nothing about it.

View 2 Replies

Sierra GMC :: 1998 - Engine Misses At Idle And During Driving Speed Range

I recently had intake manifold gaskets replaced in my 98 gmc sierra 4x4 pickup 5.7 . The day I drove it home from the shop it ran fine, even day after but the next day I noticed it seem to idle a little rough and even at normal driving, sometimes seems worse than others. No service engine light has yet to come on. Could there be vacuum leak, trash in intake or bad wires and plugs. Plugs, wires, rotor button and distributor cap are only year and half old.

View 1 Replies

Honda - Cr-v :: 2002 - Clicks / Bucks And Stalls While Driving Especially If Sitting In The Sun

My 2002 CR-V has 126,000 miles. For the last year I have brought my vehicle to the mechanic numerous times because it clicks (sounds from the passenger side dash board) bucks, and stalls while driving, especially if it has been sitting in the sun, causing the check engine light to eventually turn on. When checked by the mechanic it doesn't give a code. It seems to be electrical in nature because in the winter, even though it is significantly less of a problem, my new batteries seem to drain overnight. We have replaced both PCM relays, the air/fuel sensor, and the ignition switch. The problem remains almost unchanged. While highway driving I often have to switch gears because I will suddenly lose all power and could floor the accelerator to no avail. If I am sitting at a light, the vehicle will usually stall if I have to wait too long.

View 1 Replies

Eclipse - Mitsubishi :: 1998 - After Driving A Bit Get Hard Bucks Then Eventually Stalls

Description: after 20-30 minutes (or miles) of driving I will begin to get hard bucks (misfires beyond one cylinder) and eventually stall. The car will typically turn right back over - but stall after only a minute or so. If I leave the car off for around 15 minutes it will run fine for a while and then stall out again.

It sounds as if the car is running out of fuel which it is not. The pump remains primed and the pressure is normal.

What I've done so far:

Fuel pump has been swapped

Fuel filter has been replaced

Fuel lines have been verified (even cleaned to rail - injector heads and intake manifold... It's been a fun weekend)

Fuel pump relay has been replaced

I have also recently replaced the ignition coil due to an unrelated issue for which I will provide detail so that you too can rule this out. I had random multiple misfires in bank 3 - replaced the coil and the misfires were gone. When the problem came back I was suspect of the new coil and originally believed that this had failed at temp. This coil has been tested hot and cold and passed each way. I also swapped out for the coil with the issue on bank 3 just to verify.

I have read in a few forums which point towards either the ASD relay (which I was also suspect of early in the process of elimination) itself failing when heated or the camshaft position sensor and or the crankshaft position sensor causing the relay to trip when they are heated.

View 9 Replies