Ford F-150 - 1997-2003 :: Missing When At Idle
it's missing at an idle and it acts like it dont wanna take gas but once you get it going on the road it does good. the motor is a remanufacture motor it's only got 6,000 miles, new coils, plugs and wires, cam sensor, crank sensor, idle air control, mass air flow,and temp switch.
View 9 RepliesFord F-150 - 1997-2003 :: 2002 - Slight Missing At Idle
I have 2002 f150, fx4, ext cab, 110000miles 5.4 automatic truck, i just replaced my spark plugs, it still have a little miss, thought spark plugs will resolve but its the same, im wondering if i should change O2 sensors? clean EGR Valve? IAC valve? i am not getting good gas mileage and maybe its this missfire or something, its runs good without any problems, just this slight miss makes me think if its the cause to bad MPG.
I tried to find threads with pictures of how to change O2, how to clean EGR, and IAC, i remember seeing these threads but cant find em. And you think these three things will resolve my MPG and the slight miss?
Ford F-150 - 1997-2003 :: Engine Missing Slightly When Cold Mostly
I have a99 5.4 and its missing slightly when cold mostly. I'm thinking egr poss did tune up 7 mos ago so I don't think it's plugs or coil pacs seems to get better when it warms up...
View 11 RepliesFord F-150 - 1997-2003 :: 4.2L - Suddenly Started Missing Under Load
My 4.2 liter F150 suddenly started missing under load. A little background: It is a late 2003 and has 75k miles. It has been in my family since new, and I have had it for the last 4 years. This truck is as stock as they come, and has been well maintained.
On my way to work yesterday, it began missing. Not bad at first, but got worse. It misses while under load and under acceleration. The "check engine light" never came on. I have not put fuel in in several days, and it ran fine until now, so I doubt it is bad fuel. I started the engine after dark and looked for arcing. None visible, and I even sprayed the wires with a mist of water. I pulled the plugs and they all look normal. The gaps were all way too large, so I regapped the plugs to .054". I pulled the coil pack and it checks within range with my VOM. Can the coil pack be the problem even though it checks out on the bench? Can the large plug gaps have contributed to a coil pack failure?
Where to start. I HATE just throwing parts at this thing, and I don't like wasting money... If I let one of the auto parts stores run a scan, will it show a code even though I have no check engine light? I used to think of myself as a pretty good diagnostician, but then again, when I used to spend a lot of time under the hood, those cars had points, condensers and carburetors...
Ford F-150 - 1997-2003 :: 2002 Sometimes Missing Upon Acceleration But Not All The Time
I have a 2002 f-150 4.6 that sometimes has a miss upon acceleration but not all the time.the truck is a 4.6 with a manual trans.has no engine codes and scanner never show a misfires but sometimes it does , have replaced all spark plugs and coil boots twice.
View 4 RepliesFord F-150 - 1997-2003 :: AC Compressor Not Cycling After Replaced
My AC compressor failed so I replaced it.
I put in 1 can of R134, and I don't see the compressor cycling.
How do I remove the connector to the accumulator so I can jump it and force the AC to run.
Ford F-150 - 1997-2003 :: AC Compressor Clutch Broke
I have a 01 f150 4.2L and a while ago the ac compressor clutch broke. I didn't catch it in time and the stress it caused on the belt broke the power steering pump pulley. So I replaced the steering pump and pulley and the compressor the accumulator/dryer and the office tube put the 134a back in and everything worked fine. three months later ac stopped working. I figured the condenser was bad so i replaced it. Charged it up still no cold ac. so i thought maybe the manifold that goes on the compressor was clogged so i replaced it. While I did that i said to myself well i should tear out the dash and replace the evap as well. so just about everything has been replaced on the ac system.
Aside from the cycle switch and the high side switch witch from my test both seem to be working. now here is the thing. the tube witch holds the office gets ice cold then goes to the evap but the suction line coming from the evap doesn't get cold and the ac blows warm air. this very problem is what convinced me that the evap was clogged and needed to be changed witch is why i undertook the task of tearing the dash out. in all it took 14 hours to do the whole job. now for the pressures that i get from the ac manifold low side goes 40 down to 20 ..... this is normal. high side is a little high. I charge it to 125 still no cold air. so i dump a little more 134 in. at 90 degrees high side pressure should be around 200ish i get it there still no cold air. I have just about replaced everything i can think of.
Ford F-150 - 1997-2003 :: A/C Compressor Is Rattling And Grinding
My air conditioning compressor is rattling and grinding. I am trying to determine if I need a whole new unit or just a clutch assy. I can say this, when running it's rattling, but when the clutch engages, it clears up.
Would I be right in assessing it's the clutch? 1998 250 5.4 .....
Ford F-150 - 1997-2003 :: 1999 - No A/C - Compressor Is Not Kicking On
4.6L engine.......Well my A/C isn't working I just found out. The compressor is not kicking on. I checked the charge with my gauges and it is good so I don't think the low limit switch tripped, but I don't have a manual or anything and was wondering which number relay and fuse goes to the A/C compressor.
I also need to know which fuse goes to the power mirrors as well. I downloaded a manual from the ford fleet site, but honestly I haven't gotten around to looking at it. Not home.
Ford F-150 - 1997-2003 :: P0401 Code / Occasionally Missing Under Load
Have a p0401 code which I need to diagnose and solve. However, I don't believe the symptoms are indicative of the EGR system. Its a 1999 4.6L auto approximately 200k miles. Truck runs fine until it warms up, and then occasionally it begins to act like its missing under load. steady state on the freeway it may have an occasional miss, but put a load on the motor and the miss becomes real bad. This doesn't seem to me to be symptomatic of a P0401 code, but I don't really understand the EGR system enough to be sure. Searching on the forums for other p0401 codes doesn't seem to have the same symptoms.
View 10 RepliesFord F-150 - 1997-2003 :: Missing / Died On The Side Of Road And Have No Spark?
I recently purchased a 1997 F150 4.2 Liter. On the way home it started missing. Within the next few days it died on the side of the road. After towing home I found no spark. A few days later I t started but only for a few minuites and died. No spark, coil pack is new so I replaced the CKP and it started up. Drove it about 1/2 Mile and died again, No spark again. Not getting power to coil pack when I am turning it over. So in short, new coil pack and CKP sensor and no spark. If it sits for a few days it may start or it may not. But if it does it only runs for a short period and then no spark again.
View 3 RepliesFord F-150 - 1997-2003 :: 2001 V6 - Hesitation / Missing At Low RPM - 1000 - 1800 Or So
I have a 2001 F150with the V6 motor, automatic transmission and 73k miles. It has begun having hesitation/missing problems at low rpm, 1000-1800 or so, and it feels like the engine shuts off for a fraction of a second. At idle and above that range it seems to run fine. Also, it only happens in Drive and when the engine is fully warned up - it does not do it when cold or in Neutral. Uphill, downhill, doesn't matter. There are no OBD codes. The spark plugs, air filter and MAF sensor have been replaced recently. I have OBD scantool on my laptop, but have not been able to use it yet.
View 1 RepliesFord F-150 - 1997-2003 :: Missing And Smell - Spark Plug Has Moisture
This a 02 with 5.4, had codes po306, pulled and checked sparkplug had moisture in it. Fixed that ran ok for a little bit then started again, no codes now and smells a little like rotten egg.
View 1 RepliesFord F-150 - 1997-2003 :: 2001 - AC Compressor Completely Seized Up
I have a 2001 ford f150 with a 4.6 liter v8, my ac compressor is completely seized up, I can't afford to replace the ac right now. So I would like to just get a shorter serpentine belt to bypass the ac for now, need to get a measurement on the shorter belt for my engine? and the proper way to re route the belt without the ac?
View 7 RepliesFord F-150 - 1997-2003 :: Freon Leaking On The Back Of Compressor
I got a 2001 f150 leaking freon on the back of the compressor, can't afford to fix this summer. When I add freon should I get the freon with oil in to get oil in the system or just add regular can of freon, it took about 6 weeks before I need to add any.
View 7 RepliesFord F-150 - 1997-2003 :: Higher Idle When AC Compressor Kicks In
Sunday afternoon I noticed my 97 F-150 4.2 5-Speed manual had a higher idle. When the AC compressor kicks in, the motor revs up higher than normal for about 4 secs then comes down a little. If you barely press the accelerator, I mean just gently touch it, the motor revs up for 4 secs. Dont have a tach, but just idling in neutral, is about 150 rpms more, and when AC compressor kicks in, rpms jump about 300 rpms i assume. Maybe vacuum, IAC??? Plugs, wires, and normal tune up done about 2400 miles ago.
View 2 RepliesFord F-150 - 1997-2003 :: AC Compressor Clutch Engaging While Heater Is On
soo a friends 03 f-150 w/ the 4.6 has noticed the a/c compressor clutch engaging while heater is on. clutch engages for about 3 seconds or so and kicks back out consistently but only w/ the heater on. a/c dose function property when using a/c functions... Is this normal or does something need serviced???
View 3 RepliesFord F-150 - 1997-2003 :: Alternator Or AC Compressor Growling Noise?
I drive a '99 F150 4x4 5.4 EFI 196,000 miles. Recently I started noticing a growling noise that followed engine speed. I immediately thought alternator going out. So I pulled the belt off and it spins free and doesn't feel rough at all.
So I started it up and realized the noise got a lot louder when the ac clutch cycled. Now I'm thinking ac compressor. A short trip to my mechanic who didn't even really look at it very long and he said the compressor is about ready to seize up. I thought I might just put on an ac bypass pulley to get by for a while. Not really a sound decision in the middle of July, I'm thinking, but I'm poor and it beats having the compressor lock up, right?
Today, when I get off work and pop the hood with the ac off and the clutch not engaged the noise is worse than ever. I put a stethoscope (long screwdriver, I told you I was poor) on the alternator and it is making all of the noise. Turned the ac on again and it was really making noise now. So I applied the stetho-driver to the ac compressor and it is quiet as can be.
I am cautiously optimistic that the alternator is the sole culprit and that it only gets louder when the ac cycles because of the extra drag on the belt.
Does that seem like a logical explanation? Should I just try the alternator? I really don't want to destroy a perfectly functioning ac system only to find out that it was OK to begin with and I don't want to buy a $150 alternator for no reason either.
Ford F-150 - 1997-2003 :: Compressor Cycling Even When AC Or Defroster Is Not Turned On
My 2003 F150's compressor cycles even when the a/c or defroster is not turned on. It has the climate control type of temperature system. This doesn't seem normal.
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