It has a V6, 4wd, automatic ext cab. Some dude from an auto parts store said to shoot some starting fluid in the air filter housing towards the throttle body and that helped a little. Before doing that, the truck wouldn't start very well. It was slow to start. The guy at auto parts store also said to try a can of seafoam but we want to fix it, not put a band aid on it. Any suggestions? I'm not afraid to reward with 10 points for best answer!
2007-07-01 05:31:59 · 11 answers · asked by six3x 4 in Cars & Transportation ➔ Maintenance & Repairs
We replaced the spark plugs and wires and changed the fuel/air filters within the past 3 months. We did pull the #4 spark plug and it looked fine. Also put in a new EGR valve.
2007-07-01 05:43:24 · update #1
We replaced them with platinum plugs. Not sure where the wires were from but they were a brand name wire for what that's worth.
2007-07-01 06:46:50 · update #2
And yes it HAS been TUNED up within the past 3 months.
2007-07-01 06:47:36 · update #3
Have you tried the most obvious -- replacing the spark plugs and getting a tuneup in general?
2007-07-01 05:34:35 · answer #1 · answered by Anonymous · 0⤊ 0⤋
If the misfire code was in the PCm before you replaced the plugs and wires, it will remain in the PCm until you clear it. Unhook the battery for a few minutes and see if it comes back. If the engine is still missing on cylinder #4, it could be a faulty fuel injector. If the vehicle has been run a long time with a bad spark plug or wire on cylinder #4 it was dumping raw fuel down the exhaust, which will ruin the catalytic converters. A clogged catalyst from running the engine with a misfire will cause a hard start, poor idle and loss of power while driving, just like plugging up the exhaust pipe. If you suspect a plugged catalyst, you can remove the oxygen sensors from the exhaust and see if the power improves.
2007-07-01 06:52:38 · answer #2 · answered by yugie29 6 · 0⤊ 0⤋
Timming belt (chain, etc). It is causing 'missfiring'. Do not drive it, you could ruin the crankshaft. Have it checked. If I read your description right, the firing happens, yet it is out of 'timming' because the camshaft is slightly "off position" (I mean tenths of an arc's rotation, making the location of the piston slightly different when the "ignition" takes place - the valve's status at that interval of time - changed. What you described as "missfiring" could really be something else. It could be a bad performance of a particular cylinder due to valve train or valve components actuation (seats, springs, cam lobe, etc). It can also comes from the 'ignition' system itself, meaning that its "continuity" is screwed somehow - although this might be less likely - this would involve signals comming from the crakshaft sensing unit, the module in the distributor and the signal applied to the ignition coil via the distributor, anyone of them failed due to a wire's damaged insulation due to heat, dryness, age, corrosion, etc (signal going to ground, a solid state fail, etc). These are the worst kind of problems. Mucha mullah $$$$
2016-05-20 02:12:48 · answer #3 · answered by Anonymous · 0⤊ 0⤋
When was the last tune-up? Try plugs,wires,use dbl platt plugs and good wires.EGR,CK Ign coil.Injecter. Clear out codes,and see if problem reoccurs. If you still have problem,take to Ford dealer for diagnose only,then shop repairs at different garages,as Ford service is not cheap but can fix problem. The guy at the auto parts store is a idiot,stay away from him,he knows zero.
2007-07-01 05:49:02 · answer #4 · answered by ? 5 · 0⤊ 0⤋
Fords have a known concern with the ignition coils. If by cuts out you mean a momentary skip/miss/buck I would suspect the #4 ignition coil. That would not account for the hard starting, you may have more than one problem, regardless your "drivability concern" is the one area which I think paying the dealership prices are the best way to go, dealerships have access to info updates and model pacific history that others do not.
2007-07-01 05:47:27 · answer #5 · answered by vidiotonline 2 · 0⤊ 0⤋
If spraying starter fluid into the throttle body corrected the problem, you may have an issue with the fuel injector on the #4 piston. You may also pull that plug and see if it is fouled out. good luck
2007-07-01 05:40:06 · answer #6 · answered by Fordman 7 · 1⤊ 0⤋
If you have plugs, try dielectric grease on the insulator to stop potential arc tracking to ground.Have fuel pressure checked,about 35-40 psi .Could be linked to disfunctional injector.
2007-07-01 05:46:48 · answer #7 · answered by (A) 7 · 0⤊ 0⤋
this one doesn't have a dist does it.. Look under the hood at night, and see what it looks like running in the dark. your wires may be bad. it has happened, especially if they are from china. I just put a new chinese coil on my truck in may, and june it left me stranded. I took it back, gor my money and put the old one back on.. it was a factory coil. and it is still running..
2007-07-01 06:05:10 · answer #8 · answered by spotlite 5 · 0⤊ 0⤋
Check the spark plug or plug cable....if the plugs/cables are OK then check the timing
2007-07-01 05:36:27 · answer #9 · answered by Sir Shaw 2 · 1⤊ 1⤋
Check your Distriputor cap and rotor for any dead spots, these are both inexpenceive to replace, just sounds like poor fire so go through your ignition system.
2007-07-01 05:36:39 · answer #10 · answered by kuzycc 1 · 0⤊ 1⤋