Spark plugs problems

Spark plugs: Piece that produces the spark inside of the engine. It turns on the mixture of air and fuel that enters into the cylinders.
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CHECK ENGINE light indicates #4 spark plug is misfiring, OK to drive?p SolvedSolved

Ford F-150 1998 F-150 Ford PU 100000 miles
#4 spark plug is misfiring, doesn't affect sound of motor: can I still drive it?
Kennie from United States 4 years ago  
KE
3 reports 
Crow from United States 4 years ago
It really wouldn't be recommended due to the timing a misfire can mess the timing up which could result in well needing a new motor...11$ for a plug or $1000-$1500 or more for a new motor your choice
Solved
Best answer (according to Kennie)
Kennie from United States 4 years ago
Brakes Plus checked the engine and found a lose wire, attached it and all is solved. Thanks for your concerns. Kennie
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Spark plug blown out of engine

Ford F-150 2004 4.6 355000 miles
Engine blew spark plug and coil pack out of engine
Sidewinder from United States 7 months ago  
SI
1 report 
Ralph from United States 7 months ago
Common problem for the you might have to do a time cert in the head depending on the threads that were pulled out common problem on 4.6 and 5.4 three valve
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There's a misfire on cylinder 4,. Changed spark plug and ignition coil

Ford F-150 2012 3.5 186987 miles
There was an issue with a miss on truck, so changed six spark plugs and six coil packs and still mis fire on cylinder 4. Need to know what else can cause this issue and a remedy.
Luckie from United States 6 months ago  
LU
2 reports 

Acceleration loss under load

Ford F-150 2005 F150 5.4 3valve 100000 miles
Has power with overdrive off but hesitates and Boggs down when going up hill with overdrive on and acts sluggish when cruising at low speeds with overdrive on. When you step on the gas halfway to the floor or more it Boggs way down before accelerating. I have replaced all 8 coils all 8 spark plugs fuel filter both evap valves and the fuel pump control module and cleaned the mass airflow sensor and dumped fuel system cleaner in the tank.
Buck from United States 11 years ago  
BU
17 reports 
rthaem511 from United States 11 years ago
Sounds like the cat I'm going threw the exact same problem right now trying to figure out how to bypass the o2 sensor on the cat minna a 5.4 01 ford expedition
Chaz from United States 10 years ago
I went through this problem for about 9 months. Replaced icm, computer, disputer, coils, plugs , wires, tps, maf, egr , fuel pressure regulator,. Last thing replaced o2 sensor fixed the total thing. If I was to start over I would get the air right, o2 sensors and maf. Then check fuel pressure, and go from there. Go to a mechanic that can read the obd1 computer to diaganose it better. Good luck
Diesel Jerry from United States 9 years ago
If you have the 4R70E or W transmission there’s an issue with the design of the drum in the transmission and the valves sticking in the valve body. They make a better designed drum to fix the problem.
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Truck will not start SolvedSolved

Ford F-150 2004 Lariat 200000 miles
My daughter was driving the truck she thought that it needed or because the oil pressure gauge was reading low. She then added too much oil without knowing it. As she was driving, the truck just shut off and now will not start back. They have already drained some oil and checked all the spark plugs, and they all seem to be clean and not oily. Now it seems when you’re starting the truck. It is turning over but it’s not getting fuel. What can we try?
Al101 from United States 3 years ago  
AL
2 reports 
Solved
Best answer (according to Al101)
Al101 from United States 3 years ago
Ended up having truck towed to a shop. It has no compression apparently the motor blew.
Dreye96 from United States 3 years ago
Try cleaning the air intake system most likely got sucked into that area. Disconnect air intake and check for fresh oil residue. Will need a special tool to clean properly and flush out any oil that may have gotten sucked in.
Comment

Starting

Ford F-150 1990  109876 miles
My car won't start but there is no error code provided, injectors are clean, ECM signal is negative and there is spark in every spark plug. What else should I check?
wat from United States 11 years ago  
WA
5 reports 
sylvester from United States 11 years ago
The computer sends a pulse to the injectors, so you could try with a different computer and see what happens.
ford man from United States 11 years ago
Most ford truck has a fuel pump cut out module that tips and has to be rest
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My 05 f150 dies after running for 5to20 minit

Ford F-150 2005  220000 miles
I just bought this 05 f150,the guy I got it from said he replaced the fuel pump , coils, spark plugs, it will start if you spray it with some starting fluid and will run between 5&20 minutes then dies and will not restart for several hours even with starting fluid.
mrhintexas from United States 7 years ago  
MR
4 reports 
mrhintexas from United States 7 years ago
Thought someone could help , for sure some one else has had this same issue. New fuel pump coils checked fuel pump controler, fuses relays ect
mrhintexas from United States 7 years ago
Fuel filter new, fuel pump new cop all new fpcm new checked wiring , grounded injectors ,test light applied to both wires and I get 12volts , must be a bad pcm since it controls the injectors by pulsing the ground yet it's grounded all the time ? Wondering if it's a pats issue?
Jenny from United States 7 years ago
Mini fuse to fuel pump relay pull it out check for burnt wires
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It's very sluggish SolvedSolved

Ford F-150 2000  200000 miles
It rattles and it's very sluggish, as if something was missing. I changed the oil filter, spark plugs, cleaned the throttle body and it's still the same. The spark plugs I used are normal cheap ones, not platinum, and I calibrated them to 0.52, now it starts quickly, before it took a while. What can I do so it recovers acceleration and feels quick again?
indie from United States 11 years ago  
IN
1 report 
Solved
Best answer (according to indie)
Raymond from United States 11 years ago
You have to check the gas pressure in the fuel rail, this is very delicate and with a few pounds everything is already off. I had that problem with a King Ranch that didn't go over 70, I changed the fuel pump and that was it.
Comment

My pick up does not accelerate

Ford F-150 1998  140000 miles
It started with jerks while driving; when starting gold y vibrates and then it normalizes. While driving it losed power as if choking a little, but now it got worse. It chokes while accelerating and sounds as if exploding, when I let go it keeps driving; if I accelerate again it does the same but it doesn't stall. If I turn it off for 5 seconds it works for 10 minutes and then it fails again. I alreadi cleaned the injectors, changed spark plugs, air filter, fuel filter, fuel pump, coils and their sensors. I've already had this problem for a year and they can't solve it, yesterday I scanned it and had air sensor error, but changing it didn't fix it.
Neil from United States 11 years ago  
NE
4 reports 
Si from United States 11 years ago
It has a broken cable, an electrician can find it and fixit. I had the same problem for almost a year
Javc from United States 6 years ago
Which cable are you referring to? Is it electrical or vacuum?
adelbert from United States 11 years ago
Search in youtube how to perform a maf sensor test
Izzy from United States 4 years ago
It sounds like the issue I had with my 2008 5.4l engine. I replaced spark plugs and coils. Finally it ended up being the VCT solenoid. I got my power back and it runs great.
Gbgb from United States 4 years ago
Have you tried changing fuel pump module, ford ground wires should be cleaned tightened up fender well grounds all of them. Make aground wire ,ground strap ect. Ground firewall to the bracket on alt.
Comment

Stalls while driving

Ford F-150 1994  149200 miles
My vehicle jerks and stalls while driving, usually when I speed it up. I've already chan the gas filter, the catalytic converter, the gas regulator, spark plugs, wiring and coils. Even though the jerking problem is not as worse as it used to be, the car still stalls. Can anyone help me please?
june from United States 11 years ago  
JU
5 replies 
vicy from United States 11 years ago
You might be having some fuel pump's failure, most probably it is running out of gas
MOLLIE from United States 11 years ago
It might be the anti-theft alarm
Marty from United States 10 years ago
Check your cv axle mine was doing the same thing
Izzy from United States 4 years ago
It sounds like the issue I had with my 2008 5.4l engine. I replaced spark plugs and coils. Finally it ended up being the VCT solenoid. I got my power back and it runs great.
Kayce from United States 2 years ago
My 2010 did that when my alternator went out.
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Ruff idle cuts out while driving loss of acceleration

Ford F-150 2005 Extended cab 4.6 stx 321500 miles
Check engine light was on so had auto zone run a scan on it. And at that time my truck would barley creep down the road. Well holy crap a ton of codes parked it till was able to slowly work on it. First changed all spark plugs helped a little then all 8 coil packs. New throttle body new EGR valve. Got a little better new fuel filter. Still ruff idle and cutting out on exceleration. Used smoke machine to check vacuum leaks didn't see any smoke. Checked vacuum line from brake booster that hooks to back of intake seems intact. Brake light stays on mostly sometimes flashes on and off. I'm at a loss help me figure this out. Plz
Stranded redneck gal from United States 3 years ago  
ST
3 reports 
Putitinyajaw77 from United States 3 years ago
Same problem,,,,help,,,I'm not gonna put a ton of money into this,,,any feedback would be greatly appreciated
Stranded redneck gal from United States 3 years ago
Well I guess nobody has a clue. I have changed the throttle body w new solenoid. EGR valve mass air flow sensor spark plugs coil packs I even made my own small key machine to check for vacuum leaks. Nothing I cleaned fuel filter and o two sensors. It has around 40 psi for fuel pressure. Help this country girl is tired of being broke down guess I'm gonna round up a old nag of a mule to ride to town and back. Saves gas... sorta
Backwoods G from United States 3 years ago
Check your duct work before the mass air flow sensor. Look for any hole or crack that could suck air. If it sucks air and begins to swirl inside of that duct work it will make it run rough. I’ve got a 99 F150 that had same issues i cleaned my mass air flow sensor, on underside of duct there was a rubber grommet that wires run through that had come loose, and a 1/4 inch gap where plastic met the fender. I secured and taped the grommet and taped up the gap and it instantly changed, runs like a top now.
https://youtu.be/CBM6wbP7SM0?si=RlWI9s…
This is where i got my info. It helped.
Fordslostbolt from United States 2 years ago
Catalytic converters would be the place to look. Sounds to me that they may be clogged.
RegigigasPKM from United States 5 months ago
Check your Intake Manifold Gasket. Mine would idle rough then cut off if the idle was too low even while driving
magis tv from Australia 3 months ago
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Revolutions go up and down

Ford F-150 2008  190581 miles
It starts normally and after a while the revolutions go up and down until it stabilizes again. Like 20 minutes afterwards it starts doing the same until it shuts off. The throttle body was cleaned, the spark plugs and cables were changed, but it does the same until shutting off.
lainie73 from United States 11 years ago  
LA
4 reports 
erfol81 from United States 4 years ago
New plugs, wires, maf, intake temp sen, throttle body cleaned. Going crazy cause no one ever post the solution 94 ford taurass sho yamaha 3.0 v6 115k. Only when the heater or ac is on does it go up to 1500 back down to 800 constantly
Comment

Crank but no start. No spark to any coils

Ford F-150 2007 5.4 triton 3 valve 168000 miles
Hello I have a 07 f150 that died out at the light and would not restart. Replaced battery which was 9 years old and done for. I have checked fuel which I’m getting it is reading at range on scanner. Crankshaft, cam sensors are good. Ignition module is good, I checked fuses believe all the ones I needed. Swapped pcm fuse with another. I I have no spark to any cylinder. Starting fluid did nothing as well. Will crank but not start.
Cody from United States 3 years ago  
CO
25 reports 
Johnnybjohnny from United States a year ago
Sounds like maybe the chip in your key died or needs reprogramed. I know they are spendy keys būt you May want to try a different key
Deon from United States a year ago
How do you know if the chip is bad in the key or it needs to be reprogrammed.
Comment

Truck stalled, crank No start

Ford F-150 2010  183233 miles
Code for all 8 cylinder coils, no spark needs to check fuse box
PaulE from United States 2 years ago  
PA
1 report 
Demetri Kosklov from United States 2 years ago
Dont worry, I know this problem, This happened to me but i fixed it.
Comment

Engine failure, carbureted F150

Ford F-150 1987  150000 miles
Hello! I just bought a carbureted V8 Ford F150, but the problem I have is that it lacks acceleration and the engine vibrates the same as if the injectors were clogged, but obviously it is carbureted. What I haven't checked is the timing with spark plugs and cables. It was already without use for over 3 years, and to add more information it doesn't produce smoke or makes weird noises, and when it is in parking and you throttle the engine it sounds as if something was uneven.
erick from United States 11 years ago  
ER
1 report 
Trixie from United States 11 years ago
The cables might damage for all the time it was parked; change the spark plugs too and check the distributor cap and the fuel filter
Comment

Jerks

Ford F-150 2004  154000 miles
My vehicle jerks when I drive over 40 mph. The fuel pump and spark plugs have been changed and for a week the problem disappeared, but it has not started jerking again. What can it be?
edward from United States 11 years ago  
ED
7 reports 
nessa from United States 11 years ago
Check the spark plugs' wiring as well as the coil.
Comment

Crank but no start

Ford F-150 2007 F150 Pickup 150000 miles
Replace the fuel pump fuel filter fuel lines injectors spark plugs spark plug wires to coil EGR map crankshaft position sensor fuel regulator sensor and still nothing
Shawn from United States a month ago  
SH
2 replies 
Alex_HighDesert from United States a month ago
I had these symptoms on my 2014 F150. Changed so many parts needlessly, it turned out that my KEY was bad. I bought a $175 key from Ford and programmed it myself using FOREscan and my truck which sat for 8 months started right away.
Shawn from United States a month ago
So found out neither my fuel pump or i jectors wasnt getting power so i had ran new wire an now it starts but it keeps flooding out
Comment

Engine noise

Ford F-150 2007  100000 miles
Good afernoon, I own a Ford 150 fx4 2007 and recently I've changed both VCT (Variable Camshaft Timing), pinions and roller chains, a camshaft, spark plugs and coils. I have as well changed the oil but the engine is now giving off a sound at low revs, as if those chains were touching themselves.Even more, if I drive in reverse, the car usually starts trembling and, in order to stop it, I need to desaccelerate or stop it. No failure is provided by the computer, any ideas?
Ford from United States 11 years ago  
FO
1 report 
RANDALL from United States 11 years ago
The problem you are talking about corresponds to some chain failure.
Comment

Power to coil but no spark

Ford F-150 1997 4.6l xlt 220000 miles
I have a 97 f150 xlt I recently replaced the engine for similar one I have power going to the coil but nothing coming out. I have replaced coils but is not the problem. Please help. I am going to cut wires off the electric starter hoping that will help. Engine turns over
Will from Canada 10 years ago  
WI
13 reports 
skeeter from United States 6 years ago
You need to check your ground wires sounds like one didn't get hooked back up look at back of heads and intake for disconnected wire or loose wire
Comment

I start my truck and it's as if the electric power goes off

Ford F-150 1983  140 miles
When I start it it's as if the electricity goes on and off, I changed the 6 spark plugs and the cables of the distributor cap
bette from United States 11 years ago  
BE
2 reports 
Trixie from United States 11 years ago
Check the ignition module, it's on the driver's side and it's like a little amplificator, next to the brake's cilinder in the engine comparment.
Comment

Cost of labor

Ford F-150 2010 TRUCK 78000 miles
What are the labor bill hours to install spark plugs in 2010 ford f150
Mike from United States 11 days ago  
MI

Crank no start

Ford F-150 2007 4.2 150000 miles
Truck cranks but no start I replaced the fuel pump the fuel lines check the fuses are replaced the spark plugs spark plug coils or ignition coil spark plug wires EGR valve map sensors injectors ignition coil crankshaft positioning sensor and still no start it starts when you put starting fluid in it but dies right away now the fuel pump won't work
shawn8602 from United States a month ago  
SH
1 report 

New fuel pump new module but it run doesn't now code 453 is show

Ford F-150 2007 F-150 5.4  201065 miles
New fuel pump and New module. It runs but ruff i change my spark plug and coil packs it help it some. But now it wont start and code 453 keeps coming up. Please help me on this.
Charlie420 from United States 4 months ago  
CH

Vibrating when starting truck

Ford F-150 1998 Triton 5.4l 240000 miles
Truck has been vibrating. When starting. We replaced idol control valve and spark plugs.
Victoria from United States a year ago  
VI

No injector pulse no spark non-start I had to put Velcro on the bottom

Ford F-150 1996 Truck/5.0/ 1753450 miles
Truck turns over has no injector pulse no spark won’t start
Floydy from United States 2 years ago  
FL
2 reports 

Keeps blowing #13 fuse

Ford F-150 1995 4.9 300 inline 6cyl. 240000 miles
No spark replaced distributor,coil,eec, icm started up and ran for 15 minutes then cut off now no spark and fuse 13 has blown under the dash also no power to fuses 6,7 under the hood fuse box
Rusty from United States 2 years ago  
RU
3 reports 

cylinder (4) four missfire

Ford F-150 2014 5.0L V8 coyote 148000 miles
keep having an issue with cylinder 4 miss fire. I have already replaced all eight (8) spark plugs and the coil pack for that particular cylinder. I have also put multiple bottles of fuel injector cleaner in, it goes away for a little bit then comes right back. What could the issue be?
dman from United States 2 years ago  
DM
1 report 

. No start. No spark?

Ford F-150 2007 4.2 v-⁶ 200000 miles
Sprayed starting fluid in TB and got nothing? No spark correct? Need help also checked fuses and ASD
ChaChi from United States 4 years ago  
CH
5 reports 

My Ford F-150 bogs down at stops

Ford F-150 2007 F150 lariat 5.4v8 275000 miles
So I have a Ford F-150 and I have literally replaced both camshaft position sensors the crankshaft position sensor I have also replaced the fuel pump driver module I've replaced all the spark plugs all the coil packs and for some reason it's still bogs down when I come to a stop it will bog down and start to sound like a diesel does anybody have any suggestions
Don swanson from United States 4 years ago  
DO
18 reports 

Fails to run correctly

Ford F-150 2001 5.4 l supercar automatic 4x4  183 miles
Okay the truck doesn't want to run right it's like it's got no power you can feel it misfire your kick in and off I've got a new ECM I got a new injectors I got a new coil packs I got a new tank I got a new fuel pressure regulator I got a new fuel pump I've got new coil packs new spark plugs cam sensor crank sensor the differential pressure feedback sensor throttle body positioner sensor all this has all been put in here pretty much all new stuff even replace the wiring harness from the ECM out to the engine plug and play can't figure out why it doesn't want to run down the road very good it'll be fine unless it's an electrical issue
Harley guy one from United States 5 years ago  
HA
5 reports 
12
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