Ford F-150 - 1997-2003 :: Idles Fine With Occasional Surge / Sputters In All Gears Like A Misfire
Jul 3, 2014
I have a 01 f-150, 4.6L, with 160k miles on it. Symptoms: It idles fine with an occasional surge. It sputters in all gears like a misfire (all plugs and COPS replaced 2 months ago). Sometimes it stalls out going down highway or as I turn in my driveway. It also seems like its slipping a little without the "hard jerking into gear". Occasionally the rpm meter will peg low and then return to normal.
The only code that I received was P1451. I changed the canister vent solenoid but the symptoms remain. I've checked voltage on the TPS (the variable voltage checked out but I didn't get the 5V ref. voltage). I've cleaned the MAF sensor. I've also changed the fuel filter. I've resistance checked the connector to the PCM and found several pins that are at ground. I'm not sure what to do next.
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I have a 2002 F150 super cab with the 5.4 liter v8. I hit a large water puddle on my way to work Tuesday. I was going faster than I probably should have been. After hitting the puddle the truck lost power. It idles fine but as soon as I put it in gear it sputters and has no power. Also, the O/D drive light is now flashing. What might be going on with it.
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So my "farm truck" is idling very rough, to the point that sometimes that it stalls out. At high idle it runs fine but when its at a idle its very rough. Its been running fine until probably a month ago or so and its just getting worse. What it could be? I am thinking it might be that something is dirty but i just dont know where to start with figuring out what the problem is.
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I'm having a bit of trouble with my fathers '03 Ranger Edge 4.0L. It has about 100k miles on it, and we keep it very well maintained. This is the first major problem we've had with it.
When the problem first occured, it had been driven about 30 miles on the highway and about 5 miles after getting off the highway, he pulled up to an intersection and stopped. As he started accelerating again, it all of a sudden started sputtering, surging (almost exactly as if it were running out of gas), and then stalled. It continues to exhibit this behavior. It will start and idle fine, but struggle and then stall when given any amount of throttle. It's also an automatic transmission if that makes any difference.
Fast forward to this past week after we had it towed home. We have checked the fuel pressure, and its dead on at about 64psi. We changed the fuel filter, changed the PCV valve, changed the upstream O2 sensor, put in a new air filter, cleaned the MAF sensor, and cleaned the intake of the throttle body. We're now at a loss as to what could be causing the problem. The CEL is not on, and there are no codes being shown when we plugged it in. We also thought it may have been bad gas, so we drained the tank and put fresh gas in from our preferred station. The plugs and wires are also fairly new, only about 4k miles on them.
Are we missing anything here? What else we could try? The absolute last resort is taking it to a shop, we're going through a rough patch with finances.
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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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My 03 Corolla S - 5 Speed has developed a sound while driving, only when giving it gas. The sound goes away when I press in the clutch. It doesn't make any unusual sounds while parked and idling.
The sound, sounds like a knocking noise. At least to me that's what it sounds like. My car has 156k miles on it.
The car idles fine, rpm's are good on while driving, temps good and still gets really good gas mileage.
Does it have something to do with my clutch, since the noise goes away when I take my foot off the gas, or press the clutch in?
Is there something I should be checking? All my fluids are good, brake/clutch, oil, transmission fluid, radiator, etc.
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My car is misfiring, as in acceleration 90% sputters until I lay the pedal to the ground, which obviously isn't good for my gas. What do I do? I can't find anything online and I don't want to be throwing money into things that don't work.
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This started about a month ago. The truck surges at any speed as long as the gas pedal is at a static position. There are no codes. I have replaced the fuel filter air cleaner cleaned the maf and did a ton of reading on this issue. Is it the tps? The tps voltage does not fluctuate any when it surges. Maf,? Should be throwing a code right? Same as the egr valve. What am I missing?
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My 2007 V6 Escape 'sputters' at 30-40 MPH and sometimes at idle with moderate pressure on gas pedal. Only happens when car is warm, never in first 5 minutes. Check engine light is not on, no codes found. Thought it might be transmission, had it serviced to no avail. Tried Techron injector cleaner, no improvement. Increasing or decreasing pressure on gas pedal clears up problem momentarily.
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I have a 97 F150 with a 4.2. It has started to surge or stall out when I slow down sometimes. It doesn't do this all the time. I replaced the fuel filter about 2 mths ago and replaced the fuel pressure regulator then also. Would the tps have anything to do with it? I haven't had a scan done yet. Thought I would try here first because at one time someone has removed the two cats and the check engine is on all the time.
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So I am relatively new to diesel engines! I have a f250 6.0L, that every now and again sputters and idles rough, when the ac is off? Yes I did say off. It's only done this twice, but when I turn the ac on it goes away and runs fantastic. Not sure what could cause this, and think it's a little weird that it's not consistent. Sometimes I run it without ac and it's fine, but this has happened twice now, so I thought it might be worth figuring out.
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My truck's been having an occasional hard start, meaning the engine cranks strong but it fails to catch and then sputters. The 2nd start attempt usually fires up with no issues and then runs perfectly otherwise.
MPG's haven't changed, fuel filter was changed 15K ago. Air filter is clean. Plugs were changed about 10K ago. I always use Shell/Chevron gas. MAF sensor looked clean when I took it out so I didn't do anything to it.
This is starting to happen more frequently, maybe once every few weeks and I get a feeling it's the start of something. I've found myself waiting a few seconds for the fuel pressure gauge to come up before turning the key to start reliably. In the past, I could simply flick the key and it fires up the first time.
I see posts talking about the fuel pump module above the spare tire. What are symptoms of that going bad? Any pending codes that might be stored?
I'm about to get myself a scanner since I need one sooner or later. Which specific PID's to check while debugging this?
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I just changed my 4.6L. Now my tranny is starting to serge and buck it won't go in rev. But when I put it in D it started to clunk and buck. RPM would go up speed went down.
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I have a 97 F150 4.2l auto 4x4. The truck seems to surge or hesitate at pretty much all speeds. I have had the truck on fords so-called super "sbds" computer and they found nothing. I am taking it tuesday to have the o'2 sensors and CAT. Convertors checked at a local parts/service store. Also found out today that my speedometer is 5 mph to slow (doing 65 but speedo only registers 60).
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I have a 2002 F150 5.4 2 valve. only when the engine is cold, everyone once in a while the engine will surge up and down about 2-300 RPMs for about 10 seconds. also right when I put it in drive it will surge. I was thinking about pulling off the trottle body and cleaning it.
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I have a 1999 f150 5.4L that will drive normal and all of a sudden it will spit and sputter, the CEL comes on for a second or two, then it’s all over and its back to running normal. I changed the plugs, and fuel filter and it still does it periodically. Vacuum leak?
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I have a 2001 F150 4x4 4.6L Auto trans. 96,000 miles... I purchased it in Jan with 93,000. About a month ago it started making and occasional knocking noise coming from the engine, this noise was heard at idle in park and in drive. when I revved the motor it would go away but as the idle settle back down you could hear it again. the noise would go away as I was driving and come back with no rhyme or reason, I put a stethoscope on the engine and it seemed loudest under the oil pan. The oil gauge is up between 5/8 to 3/4. Fast forward to now, When I start it I hear a scraping almost grinding noise that resonated thru the cab it has the same intermittent characteristics. I think I am going to remove the serp belt, remove the trans inspection cover next and see what happens. Oh I did put a scan too on it, no codes but did notice 1 long term 02 sensor trim was staying around -.618 if I remember.
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I have a 2000 f150, the overdrive light flashes on the swifter, the motor has no power and sputters unless I put it in second gear. It won't shift gears in drive.
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So after work tonight I went to start truck it turned over fine but wouldn't start, when it finally did it barely ran and then it was fine, I had it b4 when I start it would turn over for a little bit b4 starting, would that be fuel pump?
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I am working on a 97 4.6 with 146k for a friend. It idles rough and seems to lack power (then again a 4.6 lacks power )
Has New:
plugs
wires
coil packs
fuel filter
sea foam intake
sea foam fuel
I have checked:
proper egr function
vacuum leaks
cleaned IAC
steady 17-18 in vac
clean air filter
cats do not seem to be getting too hot.
no codes
KOEO test ok
KOER test ok
The plugs worked some. Dirty MAF, clogged cats??
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We have a 2003 Ford F250 Super Duty, gas engine. This will start fine, then a day later, it won't. Wait 30 minutes, then it starts.
Starter and battery are fine. It acts like it isn't getting fuel. Fuel pump? Filter? What else might cause this?
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