That sounds a bit low but considering they all measure the same I'd say it's OK. You are disconnecting them to test correct? What's the problem and why are you testing them. Resistance testing is only about 75% effective imo

I use a Snap-on Verus Edge 90% of the time.

You cannot measure the primary and secondary resistance of most GM ignition coils due to the fact that there is a built in transistor. In fact any coil with more than 2 primary control wires typically contains a switching transistor and cannot be resistance tested. Swapping with a known good coil is the easiest approach. Current Ramping is another approach as well. Hope this helps you.

If the chain is worn the cam timing will be wrong which leads to random misfire which sets a P0300 code. So if plugs, coils and injectors have been ruled out your mechanic is likely right.

There areblots of possibilities for misfire. If you have a cam timing error code thatvcan cause random misfires. It could be a stuck solenoid but could also be loose timing chain or stuck phaser.

@@PhillipBailey Thank you! I will be taking my car to the shop on Monday. I hope it's not the timing chains😩 I appreciate your input!!

@@isabellagalindo59 good luck for sure.

If it reads VCT variable camshaft Solenoid then it's a good possibility that you need to change your solenoids.

@@kingrichards101 Hello, yes! When they checked my car I literally had no oil. I had no idea! (I don't know much about cars so I didn't know I still needed to periodically add oil even if the oil change was recent) I got an oil/filter change and the car was fine! I did end up getting all new solenoids/spark plugs and breaks put in a week later. My car is back to driving smooth and have had no further problems🙂

Snap-on Verus Edge

Check compression and do an injector flow test.

@@PhillipBailey It seems like I'm not getting any gas to cylinder 3. I know this question is a long shot but is there a way to fix the injector without changing it out?

@BullProspecting you need to flow test the injectors. You could swap number 3 to 4 and see if the misfire follows the injector. I'd still recommend a compression test first though. On rare occasions flushing injectors helps but usually does not.

@@PhillipBailey I'm just curious, what will the compression test tell me? My neighbor let me use his but I had to give it back before I got to use it.

@BullProspecting There are several possibilities for a misfire. 1. Poor ignition possibly due to faulty or worn sparkplugs, failing ignition coil or supporting wiring or failed driver in the ECM. 2. Plugged or stuck closed fuel injector or possibly poor spray pattern, injector wiring or again failed driver in the ECM. 3. Low or lack of compression in a cylinder possibly due to broken or leaking piston rings, burnt valve, worn cam lobe or collapsed lifter. A compression tester confirms the rings and valves are working correctly.

The spec is 15ft lbs.

@@PhillipBailey Would that be for a 2019 chevy equinox also? 1.5. Thank u. The engine is a 1.5

@@scraplifetrashtocash4551 yes 15 foot pounds should be fine.

I'm in northern Ontario Canada so we get snow and slush 8 months of the year. Lots of my customers also live on gravel roads as do I. Plus they spray salt on the highways to control ice and that eats everything.

@@PhillipBailey Thanks for the reply. I had a shop in Louisiana for 37 years. Been retired for13.In my parish (county), sales taxes have paved everything navigable-including cow paths.

Was hoping this would relate to my eco tec problem. No such luck.

@@TG-be3io what's the problem?

@@PhillipBailey the one I talked to you about it the other week. Surging at idle and timing all over the place. Seen this video pop up and thought you had the same problem. This one isn't isolated to one cylinder tho.

That's a loaded question. It is possible that a misfire is caused by a mechanical problem in the engine. Misfire codes can be caused by ignition faults such as a failed coil, sparkplug or wiring to the coil, Failed or plugged injector, vacuum leak on the intake port or manifold, cam timing errors, bad valves and piston rings. Could also be fuel quality or low fuel pressure. You have to test all these things prior to condemning the engine. If I was you I'd get a second opinion...but yes it may need an engine replacement or internal repairs.

P0300 is a random misfire which could be caused by plugs, ignition coils, plug boots, plugged injectors or mechanical engine problems. P050D is cold start misfire and basically the same as P0300

@@PhillipBailey could it be the coil module or the ignition coil? I'm gonna start with plugs and wires first then next said issue if persists.

@@christophersmith3661 you need to see if the miss is random or isolated to a specific cylinder. Look at cumulative misfires in mode 6 data to see what has been counted over the last 10 drive cycles. This will be wiped out if you clear the codes. If your scanner supports live data check misfire counters while running. If it seems to be a specific cylinder I'd try swapping a coil first see if the misfire moves with the coil. Good luck

@@PhillipBailey hay phillin I a p2635 could a p300 misfire cause that

The P0172 is running rich, 2271 is B1S2 O2 pegged rich, P0191 is a high pressure fuel pressure irregularity. I'd check for fuel in the engine oil. Probably has a leaking high pressure fuel pump leaking fuel into the engine oil. The misfire codes are likely as a result of running rich. Good luck...

@@PhillipBailey what would you suggest fixing first? i was going to go for fuel injectors because we have already done spark plugs.

@momomo3772 I'd suggest to check the engine oil for contamination as I said. Don't throw parts at it. The fuel injectors are not cheap nor easy to replace. If the oil is overfull then change it. Running watch the short term and long term fuel trim numbers they should be +/- 10% max. Watch desired and actual High Pressure Fuel pressure running. Should match. Once warm shut it off and then turn the ignition back on. Monitor HP actual fuel pressure and note that it should rise as the engine goes through a hot soak. If the HP fuel pressure does not rise replace the HP pump.

@@PhillipBaileyYes it has been confirmed that there is fuel in the engine oil.. And we jus thought the motor was burning oil into the engine..but thought it was a manufacture problem with the sylinoids

@momomo3772 like I said likely a leaking HP pump. It's easy to replace but not cheap. Be sure the change the oil and filter as well.