Ford Super Duty (1999-2016) :: 2003 F250 Starting Rough Starts After Sitting For Few Days

I have a 2003, F250 SD, 5.0 with a weird problem no one can figure out. Now it doesn't matter what time of the year it is but after the truck sits a few days when I go to start it up it run roughs. Sometimes for a few seconds sometimes a few minutes then it "straightens" itself out. Recently it took almost a day to fix itself. No engine codes, no other symptoms.

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Ford F-150 (2004-2008) :: Runs Rough And Idles Poorly Only When Cold

I recently replaced the plugs cuz I had a rough idle all the time. During plug change when I discovered they had already been changed I found one that had a burned off electrode. Does this mean a lean condition exists?

After plug change it runs smoothly but only after 10 min warmup in our canadian winters. I can drive it when its not warm but seems to have less than full power and idles very badly after driving w/o proper warmup.

Next I changed fuel filter and checked fpdm, it was a little rusty but not bad so i just mounted it 1/4 off steel to prevent further rusting.

Since then I have installed a programmer [diablosport] but found no codes since i had battery disconnected for filter change. no new codes in last few weeks since.

So do I have a lean running cylinder causing this poor cold idle or a rich cylinder? It must be a clogged or dripping fuel injector right?

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Ford Aerostar :: 1994 Starts / Idles About 10 Seconds Then Begins To Idle Rough And Dies

I just replaced the water pump and put it all back together, now it won't run well enough to drive. Checked vacuum system, all sensor connections, hoses, gas cap, changed fuel filter, I can hear the fuel pump kick in, reset system with battery disconnected and have looked at everything I can think of so far.

Now - starts fine, idles about 10 seconds and then begins to idle rough and dies. If I use the throttle I can often keep the idle up, but then backfires or acts like no fuel and again dies. Used fuel cleaner and made sure there was plenty fuel in tank.

I am looking at replacing sensors at this point but which one first?? They get a bit expensive real quick.

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Ford - Escort :: 1999 - Rough Start / Couple Of Hiccups But Runs And Idles Fine

I have a 1999 Ford Escort SE wagon with 112k miles on it. Last week when leaving work my car started very rough. This was unusual so I killed and restarted the car about three times before letting it run it's course (~30 seconds), after which the car ran fine. About a week later on my way to work the car seemed to 'sputter' (for lack of a better word) when I pushed down on the petal looking for some power on two separate occasions. On each side of the sputters the car seemed to respond fine, but when it did sputter there was a severe lack of power. I got to and from work just fine, but while letting the car idle in the parking spot of my apartment for a minute before shutting off the engine the check engine light finally came on. The following morning the car again started rough (as if it were misfiring/running on 3 of 4 cylinders) and this time it took a good minute before smoothing out. However, after the car smoothed out I experienced no issues on the way to work, no sputtering, no loss of power, nothing. Doing some initial online research I feel that the problem may be one (or more) of the following:

-Fuel pump
-Vacuum lines
-O2 Sensor
-Spark plugs (they are original)
-Fuel Filter (it is actually past due for replacement)

I plan on getting this checked out ASAP, but that still may be 2ish weeks away with my schedule. Some similar reports say that I may be having a 'lean mixture' issue (not getting enough fuel), but I haven't had the time to check the code. My question is, how "safe" is it to continue driving my car with the current situation? Is it at a super high risk of failure/random stalling during rush hour? Will it cause any damage to the engine if there is a cylinder misfire upon start up? I was also wondering if the car would be reasonably reliable to drive on a ~400 mile road trip on an upcoming weekend, but I am making plans as if it is not.

Additional Details:-Tried charging the fuel lines (car to 'ON' then 'OFF' position 3-4 times), had no effect on the morning start-up-Commute to/from work is about 20 miles

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Ford Ranger / B-Series :: 1994 - Idles Rough / Stalls When Cold But Runs Great When Warm

I have a huge problem. My 94 ranger 2.3L 5 speed manual transmission, has problems with idoling while it's cold, has no power going uphill and stalls when I slow down to stop. This is all after putting a new motor in. The old one was running ok with 310,000 but lagging bad. I figured with the driving I do, a new motor wouldn't be a bad thing. Boy, was I wrong. It has been a nightmare. But once the truck is up to operating temperature, it runs so smooth you wouldn't think there was a problem. But let it cool off, restart, and boom! There it is. We have changed so many parts and sensors with absolutely no change to the original problem. It's very frustrating. I just can't let this problem win. I will figure it out.

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Ford Aerostar :: 1995 - Rough Idle / Jerky Acceleration

Symptoms: (162K miles, last tune up about 70K miles ago) rough idle, and poor acceleration. Occasionally, the car really jerks while accelerating. I read about new plugs/wires, and something called seafoam. I think the highway patrol would pull me over as a gross polluter, but that too seems worth a try. Various sensors and hoses, I'm frankly overwhelmed. Where to start?

Something I learned today: My car was made in 10/95. Apparently, I can scan for trouble codes?!? How and where? Is it OBD I or II or something else? Dumb question: I can't even get the interior engine shroud off. I found three clamps, but it still hangs up near the top. What am I missing?

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Civic - Honda :: 2001 - Idles / Runs Rough At Certain Rpm?

Have a 2001 Civic DX, Manual Transmission, 228K miles. 1.7L SOHC.

Recently changed front motor mount and timing belt on the same day.

I noticed the car running rough and is only rough at certain RPM. Here are the rpm ranges it runs rough, 700rpm which is idle, 2200-2400rpm and 3400rpm approximately. It idles at 700rpm which I believe is the idle rpm on my car, so thinking my timing is not off. One more thing I noticed is if I have AC on and reving down in rpm it sounds like it is about to shutoff (never shuts off) and get a stronger vibration and same thing when I turn the AC on at idle. With ac on my rpm are 720rpm give and take a few. I been driving with above symptom for 300mi+ so far, even got it upto 95mph, don't know if it is an indication of anything. Got new spark plugs installed at 220K miles.

Could it be the motor mount or my harmonic balancer is out of balance. I did have to use 3/4" impact wrench to knock the harmonic balancer bolt loose. It is a little rusty given I got 228K miles on it.

I am just dreading the thought of my timing being off by a tooth, me and my friend checked the timing marks per oem manual, he checked the cam shaft pulley marks and I did the crankshaft. When we installed the timing belt I only turned the engine counter clockwise so I would not cause a problem with timing belt slack. My AC belt may be a little too tight as well.

The motor mount I put in was an aftermarket one that I bought from amazon. But I have put in aftermarket mount before on the same car and never had anything like this. I am planning to loosen the motor mount, shake the engine, tighten them back up and see if it makes a difference. May be the engine is not seated properly.

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Ford 7.3L Power Stroke (1999-2003) :: 2000 F350 Idles Fine But Runs Rough After Warms Up A Little

2000 F350. Starts great. Idles fine. After it warms up a little, it will run rough and lose power like it is only hitting on a few cylinders. It will eventually stall unless I push the clutch in and bring it back to idle and then it smooths back out. I figured it was starving for fuel but I can rev it with the clutch in with no issue. I ran it up to 2500 rpm and held it there with the clutch in and ran perfect.

I let the clutch out and start rolling....missing again. The check engine light does come on but my scanner says that there are no codes stored. If I idle it, it will smooth out, and the light goes off. All I have done so far was change the fuel filter which was almost plugged shut and the housing was full of rust looking debris which I cleaned out. BINGO! Nope. Same issue.

I am really at a loss as to where to start. I bought this with 120k on it and it now has 170k and I have not had to do anything other than routine maintenance.

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Golf IV / Jetta IV :: 2001 VR6 GTI - Idles On 3 Or 4 Cylinders / Runs Rough

2001 VR6 GTI....

Already done:

Replaced the coil pack and plugs

Measured resistance of plug wires (all at about 6K Ohm)

Replaced front O2 sensor

Replaced purge solenoid valve

Replaced coolant temp sensor

Replaced fuel filter

Replaced fuel pressure regulator

Replaced MAF sensor

Cleaned the throttle body

Cleaned the throttle position sensor

Ran a tank of seafoam treatment (injectors were new 6 mos ago.)

Checked running voltage of battery

It was smoking and stinking bad with a rich mixture. It improved with the MAF change but still runs like a farm tractor. Now it idles on 3 or 4 cylinders, runs rough through 3000 RPM then runs cleaner at above 3000 RPM, but only at light throttle. CEL is either on or flashing when driving.

Don't know what to do next - nice car not fun to drive like this. What this could be and how to test it?

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LS / MKZ :: 2002 Lincoln Idles Rough On Cold Mornings But Runs Fine

The car idles rough on cold mornings but runs fine. It will stall while idling but starts back easily. I am getting a 1131 and a 1151 code with my scanner along with 0300 and lean bank 1 codes. I started having these problems after I had to remove the upper intake to replace coil packs. I was getting egr code and had an egr port completely block off but cleaned that out and no longer get the egr codes. Spraying carb cleaner around the engine I get a very slight bump in rpm around a couple of the intake ports could that be my problem or should I look deeper?

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Mitsubishi - Diamante :: 1995 - Car Idles Rough

I have a 95 Mitsubishi diamante es 3.0 sohc auto trans. it idles rough i have replaced plugs wires cap rotor button air filter and fuel filter. checked the timming belt ok checked the fuel pressure it is 40 psi the book calls for 38 psi. if i rev it up to 2000 rpm's it smoothes out.

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Buick Century :: 1995 - Idles Rough Occasionally When Warmed Up

I have a 1995 Buick Century with 149,000 miles that will occasional and randomly idle rough when started warm. Also, on several occasions it will idle so rough it kills the engine and I'm unable to start the engine until the thermostat reads completely cold. I've taken it to 2 separate mechanics who both are unable to pull any error codes (even after the engine has died) and are unable to duplicate the problem. When it does idle rough most of the time I can rev the engine, put it in gear and drive it for a few minutes and the problem disappears. Other times I try to put it into gear and it kills, I put it into park and try to restart the engine and the engine will start for a brief second and then die and will die faster each time I restart until the engine doesn't turn over at all. Then once the thermostat reaches 'C' it starts up like there was no problem at all.

Here is a list of recent pertinent repairs:

- Replaced Battery 12/2/11
- Replaced plugs and wires 4/11/12
- Throttle Body Gasket and Fuel Filter Replaced 3/18/13
- PCV Hose replaced 2/19/14 (last mechanic's guess on the problem)

I don't notice any signs of a rich fuel mixture or abnormal exhaust (there was a discussion with a Buick with no start that had this).

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Nissan - Altima :: 1995 - Rough Idles And Shuts Off When At A Stop

I have a 1995 Nissan Altima GXE 4cyl and it has been rough idling for a while now but now I have this new problem. While I drive the car and after it has warmed up, the car shuts off when I'm at a stop. When I'm at speed, it runs just fine and smooth and I only have problems at stops. I then restart the car just fine and continue driving. I'm having to keep doing this over and over. What could be the cause or causes for this?

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GMC - Sierra :: 1995 - Runs Rough And No Power

I have a 1995 GMC that I have owned since new. It has 212,000 miles on it, a 305 TBI, and a manual five speed. It started running bad all at once. It idles rough, at different speeds and never settles down, (between 900 and 1300 rpm. It smells like raw gas, smokes, and has no power to get started from a stop. I checked the vacuum, it is at 19" at all rpms. The MAP sensor reads 0.3VDC when off, 4.12VDC when idling, and 1.5VDC at WOT. It appears to have 12PSI fuel pressure (after a messy test set up!) on the fuel pump side of the fuel filter (filter replaced 10,000 miles ago). The EGR valve appears to cycle OK when I suck on the vacuum line so I assume it works OK. I found a bad TBI flange gasket and replaced it. It runs slightly better but still smells like raw gas and has no power. When I try to accelerate, it immediately has no power, like a big vacuum leak. The idle is close to normal (900rpm = normal). Do I just start replacing parts?

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Infiniti - G20 :: 1995 - Runs Rough On Second Start

1995 G20 5.7L... This van runs great when first started and continues to run fine after it's warmed up and will do so until it’s turned off and restarted. When first started vacuum at idle is steady at 21” and 10” at 55mph cruising speed. I can continue driving for an hour or so and it will continue to run fine. It's only when I shut it down and restart after 20 minutes or so that I have a rough running condition. After parking for 10 to 20 minutes and restarting idle is still steady at 21” vacuum but the van hesitates on acceleration and runs rough at cruise with a 5” vacuum. If I continue to drive I get low vacuum trouble codes for the MAP and Oxygen sensors. I’ve replaced the oxygen sensor and performed a diagnostic on the MAP sensor which checks out ok. I’ve checked for vacuum leaks – none found. I've replaced the spark plugs, cap and rotor. What to look at next?

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Honda - Accord :: 1995 - While Sitting At Light Vibrates Due To Rough Idle?

I have a 95 honda accord 2.2L, 135,000 miles. One day while sitting at a light the car started vibrating due to a rough idle problem. The idle speed is ok at about 750 rpm.

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Ford Super Duty (1999-2016) :: Battery Goes Down Sometimes After Sitting For Few Days

My battery on my 2008 SD goes down sometimes after the truck has been setting for a few days. This doesn't happen very often, and I've checked to see if I left something on that could have put a draw on it. I can find nothing that has caused it. I jump it off and might go a month before it happens again. I've got an add-on voltmeter that show voltage when the switch is on, and it's charging perfect. On older trucks, I would simply put a test light between the positive post and the cable and checked for a draw, but on the later model there is always a slight draw to keep memories alive.

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Ford Excursion :: 2001 - Reverse Slow To Engage After Sitting For 8 Days

Monday I started my truck after leaving it in the garage while on a 8 day vacation. Shifting into reverse led to almost no movement at all. After a few seconds, I shifted back into park and then reverse again and got a solid reverse right away. I may have noticed sluggish shifting into reverse previously, but not this noticeable. What could be the culprit?

2001 Excursion 7.3 4x4 .....

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Ford F-150 - 1997-2003 :: Truck Would Not Crank After Sitting For Few Days Without Being Started

I am having problems with my 97 F150 6cyl. A couple of months ago, I noticed the truck after sitting for a few days without being started would not crank. After some trial and error, I found that turning the ignition switch on and off several times did the trick and the truck would crank right up. I was thinking this might be a fuel pump or fuel filter issue but, I'm not sure.

A couple of days ago I was going to drive the truck and did the ignition switch deal as usual and the truck cranked up but, there shortly after while just idling the motor died. I have tried and tried to crank it and it want start back. After thinking on it, I don't know if this is a fuel problem or not, or maybe even the ignition box.

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