Engine running rough found code p0353 for ignition coil. This vehicle has two ignition coil packs how I know which one is bad?
Pull each wire off one at a time and see which one that you pull off doesn't make a change in the way the engine runs. For example, start the car. Remember the way it runs. Turn the car off, remove a wire off of the plug and restart. Do this until you find out which cylinder isn't firing because it will not make a change in the way the engine runs. That'll tell you which coil is out.
The code P0353 is for cylinder #3. (3rd one back from the front of the engine) on the passenger side. Follow this plug wire to the correct coil pack.
SOURCE: 97 ford explorer 5.0 coil pack& plug wire diagram
Go to this web site for the info you need
http://www.moddedmustangs.com/reference/firing-orders.php
SOURCE: Check engine light comes on. p0171 and p0351 codes found
From Lusty Kid:
I know the economy is bad, but change all of the plugs. Check your PCV Valve hose, 150 rottens them out allowing air to be sucked in, thus all kinds of codes.
Depending on mileage. Dismount the EGR valve and clean passages. If you are really good dismount the throtle position sensor body and clean out passages with Choke Cleaner., dismount where the EGR valves connects to the engine, clean out passages. Also check the hose thats behind this mounting to ensure is not clogged. If clogged clean it out. If not replace it. Is about 1.5 ft. long, connects to the PCV Valve Hose.
When is the last time you change your harness. Can't remember??? Replace it. Good Luck
SOURCE: 2000 ford expidetion , running very rough but
try cleaning the MAF sensor...it's a cheap route that may fix the issue. Here are some instructions:
http://www.fordf150.net/howto/clean-maf-mass-airflow-sensor.php
SOURCE: P0136, P1131, and P1151 codes on Ford Expedition 2000 4.6L
Your auto has four O2 sensors. Two upstream and two downstream; With two banks. Bank 1, sensor 1...and bank 2, sensor 1 are the two upstream (exhaust manifold before the catalytic). Bank 1, sensor 2 and bank 2, sensor 2 (other side of catalytic)
Code 1131= upstream; bank 1..sensor 1
Code 1151= upstream; bank 2..sensor 1
Code P0136 (generic code) bank 1..sensor 2 (questionable)
I wouldn't spend the money to purchase 3 sensors. Highly unlikely all three are bad; Cost is about $40/ ea.
Since there isn't a code for the cat's themselves, I would suspect the O2 circuit is malfunctioning. The rough idle is another clue.
Take an ohmmeter set it on X10 scale and measure the resistance from engine to body and body to negative post on battery terminal. You should read zero ohms (full needle deflection). If you do go buy two upstream O2 sensors. If you read
open or a high resistance run two straps from eng. to body...and body to neg.batt. post.
FixYaWIZ................saailer
I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867
SOURCE: Would ignition coil problem cause 2001 Intrigue to misfire?
Not hard at all. Seven bolts and one connector. No computer work. But you need to know if it is the front coil or back coil. Front coil for cylinders 2, 4, 6. Rear for 1, 3, 5.
http://99intrigue.shutterfly.com/headgasket/97
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