New Ignition Coils and Plugs Didn't Fix Your Car or Truck's Misfire? What Else Could It Be?

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If you have a rough running engine, your first thought is probably to replace the spark plugs, ignition coils, or both. But what if the engine continues running rough after that? In this video, Andy points out the other half of the rough running problem: fuel delivery. An engine won't run well if it's not getting enough gas! Andy shows you how to check fuel injectors for problems, and gives you tips on how to replace damaged or chewed wires and connectors for the fuel injectors. If you have given your car or truck's engine a tune up, but it still runs rough, this might be the fix for you!
0:00 New Ignition Coils and Plugs Didn't Fix Your Car or Truck's Misfire? What Else Could It Be?
1:06 Fuel Delivery Is the Other Half of a Rough Running Condition
1:30 Tips for Replacing Chewed or Damaged Wires
2:28 Possible Fuel Injector Problems
🔧 List of tools used:
• Flat Blade Screwdriver 1aau.to/obLg/1AXAA00013
• Phillips Head Screwdriver 1aau.to/obLg/1AXAA00013
• Complete Metric Wrench Set 1aau.to/oagT/1AXAA00010
• Complete Metric Socket Set
• Pliers
• Wire Cutters
• Ratchet 1aau.to/ocgS/1AXAA00016
• Butt Connectors
• Gloves 1aau.to/obkp/1AXSS00048
• Safety Glasses
• Multimeter 1aau.to/op/1AXAA00035
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For More Info visit us at 1aau.to/h/gen/
⚠ DISCLAIMER:
While 1A Auto strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. 1A Auto is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.

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[@DillonDaVillain222]

I just want to thank y'all I only watch your videos if I need it and try ti inly get oarts from y'all too thanks

[@davida871]

Nice video, same issue with my Corolla changed them out but still have vibration at idle.
Motor mounts replaced too.

[@johncampbell1453]

Great to see you Andy!

[@HankYouVeryMuch.]

To all the owners of the newer Ford transit with a EcoBoost 3.5L, may God be with you for this concern

[@PeterHernandez-lg2eh]

This is where I'm at. Po302 on my 2006 Subaru sti. Did all the swaps, did compression and leakdown great numbers. Vacuum leak test smoke machine intake and exhaust. All good. Checked and tested the Hitachi side feed injector ohms and spray pattern good. Checked injector connection for proper pulsing, no issues. Tested and cleaned the crankshaft and camshaft position sensors all good . Out of ideas what next.

[@mattb9664]

I remember that engine - the 2004 model had an issue with the intake manifold gasket. The gasket would lose its compression state at high mileage, and cause random unmetered air to get sucked into the engine, which would cause sputtering and misfires. There was a revision OEM gasket that was orange instead of black- that fixed the problem for me way back.

[@scottymac62]

A can of Barrymans B12 Chem Tool will do wonders for old tired engines.

[@centrodediagnosticoelectro623]

Wood Morning l am from Mexico

[@AngelEyes-xm7el]

J008 8 jeep when it rains I lose my lighting of odometer. Does anyone can help this gal. I can't afford a rip off mechanic Thanks 😊🙏

[@annriley4534]

Thank you for this info..praying I don't have a busted head gasket..about rodents and our car wires, I've been told they're wrapped in coverings made from soy which rodents are heavily attracted to(would luv to know how to combat that if possible).