Cylinder 8 Misfire Ford F150

I diagnosed low compression due to a worn intake valve. You should only be seeing this code if you have an engine with at least 8 cylinders. I went home and changed out the cop on cylinder 2. Replaced all 8 spark plugs, cleared the code and then it came back on 2ish weeks later. If the canister purge valve fails and sticks open, it will create a vacuum leak that can affect the engine idle speed and quality.

Two months ago had the check engine light come on for the first time, scanned it and the two codes were p0316 and p0308. I'm in a 2013 5l fx4. Web cylinder 8 misfire detected. Replaced all 8 spark plugs, cleared the code and then it came back on 2ish weeks later. It stayed the same and i progressed to change the spark plugs next and the misfire code came back.

We run to the parts store, grab another coil pack, swap it out, and we're still getting the same code for a misfire. Cylinder for sale in chicago heights, il. I took it to 2 shops and they both found compression very low on cylinder 8. This must usually happen multiple times before a trouble code is stored and the check engine light is illuminated. I get it to my buddy's place, he hooks up his code reader, and it's cylinder #8.

I diagnosed low compression due to a worn intake valve. The fixd wireless obd2 scanner and free app for iphone and android translates your check engine light into plain english so you can rest easy. First time posting on here so bare with me. 198k views 4 years ago #checkenginelight #fixd. This must usually happen multiple times before a trouble code is stored and the check engine light is illuminated.

Web 2009 f150 cylinder 7 & 8 misfire issue. One of the first symptoms that a faulty canister purge valve may produce is a rough idle. The p0308 trouble code means that the powertrain control module (pcm) has detected an issue with the ignition of the fuel being provided to cylinder 8. I went home and changed out the cop on cylinder 2.

When I First Start My Truck It Will Idle Very Rough And Will Get Misfire Codes For Cylinder 7 And 8 (Sometimes 8 Not Always).

There have been some that have had a cylinder 8 overheating issue, but that was more common on the mustangs. Web it’s and obd2 code and means that a misfire has been detected in the 8th cylinder in the firing order. P0308 is typically caused by bad spark plugs, plug wires, or coil packs. Common causes of this misfire include a faulty spark plug, worn spark plug wires, a faulty fuel injector, a vacuum leak, an intake manifold leak, a faulty ignition coil, or an engine mechanical problem.

This Must Usually Happen Multiple Times Before A Trouble Code Is Stored And The Check Engine Light Is Illuminated.

12k views 2 years ago. At the time i swapped coils to see if the code changed. Web replacing the heads on a 100k mile 5.0 doesn't guarantee that the engine will be good to go, you still may run into issues with the piston slap which can cause cylinder wall scouring and ultimately a loss of compression like it did in my 5.0 (which coincidentally was cylinder 8). What the p0308 code means.

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It appears to have been very well maintained and was running great for the 500 mile trip home. So, it’s mostly a code for v8+ engines. So a few days ago, i have a cylinder misfire on my 5.4. Cylinder for sale in chicago heights, il.

Web 2013 F150 Cylinder 8 Misfire.

Web try moving the cop on cylinder 8 with another cylinder and see if the misfire follows. Web 8 cylinder (17) lariat (13) under 45,000 miles (43) xlt (58) awd/4wd (102) king ranch (2) platinum (5) 6 cylinder (89) white (19) automatic (106) black (33) leather seats (25) sunroof (16) lariat & xlt (71) limited (1) blue (5) xl (11) raptor & raptor r (9) filter (4) sort. Web the mis fire logic is base off the crank shaft, the pcm know when the the cylinder should fire and looks at sensor on the crank shaft to see an acceleration, if it misfires, the speed will decrease until the other cyclinders fire. First time posting on here so bare with me.

If none of those have an effect, try a compression test. Web cylinder 8 misfire detected. Web it’s and obd2 code and means that a misfire has been detected in the 8th cylinder in the firing order. Received 0 likes on 0 posts. I get it to my buddy's place, he hooks up his code reader, and it's cylinder #8.