Might be an illusion but something to check.
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Update on the CEL evap system problem on the 08 4Runner. The CEL is still out and today, I was there for tacos, she brought the old gas cap. I twisted it on and it tightened down and clicked several times and then I let go. I touched it and it rattled around and had to move about 1/4" to left and it came off. was definitely not tightening down.
08 4Runner gave me the go ahead and I have ordered the parts. Now is just a waiting game for parts to get here.
Yes, it is cracked. I took her out to her vehicle, should have said this earlier-thanks for keeping me on my toes @iamdub, and we popped the hood and I reached in and showed her the crack and I could easily catch it with my fingernail. I actually ticked a little chunk off of it. Not arcing to metal close to it yet. She is very inquisitive and was very interested and was a little mad at the dealer for not pointing out the corrosion at the battery and for the air filter cover not being completely attached. I showed her where a Toyota site, that sold oe Toyota parts, showed the ignition coils in the same pic as the spark plugs because it is a good idea to replace them as a pair. I have asked to buy this vehicle from her many times, it is in great shape, and she said she loves the vehicle and wants to take care of it for a long time and also save money at the same time. I told her I can help her do that. Big smiles.Was that coil cracked? Curious cuz it looked like a moisture spot to me. Like a splash of water or something else mixed with the dust on the coil but then dried.