My Caddy needed an oil change so, in my ongoing search to find a decent shop, I tried Grease Monkey which is close to my home.
Review: They overcharged for the (synthetic) oil change and gave me a minimal discount when I pointed this out to them.
I noticed at the time that they did not mention my needing a new air filter (which I did need). Why? I have an idea now. The car started running rough immediately after the oil change. I didn't put two and two together until today. Eventually the car threw a P0174 code which is a lean bank code. One of the causes of this code is unmetered air coming in past the MAF. After I opened the hood to look for an air/vacuum leak, I discovered that the clamp where the air intake meets the block was completely loose. AH! There's my air leak.
Wait a minute? Why is this clamp loose? Nobody besides me has been under the hood for months... Except for the oil change shop. I'm guessing they started out to check the air filter, couldn't figure out how to get to the filter box, took the clamp loose to try to pry the entire air intake off and then gave up without remembering to tighten the clamp. Fits the facts, Jack.
Local Port Charlotte Grease Monkey rating? FAIL
Good news is the car is running silky smooth after tightening the clamp.
Review: They overcharged for the (synthetic) oil change and gave me a minimal discount when I pointed this out to them.
I noticed at the time that they did not mention my needing a new air filter (which I did need). Why? I have an idea now. The car started running rough immediately after the oil change. I didn't put two and two together until today. Eventually the car threw a P0174 code which is a lean bank code. One of the causes of this code is unmetered air coming in past the MAF. After I opened the hood to look for an air/vacuum leak, I discovered that the clamp where the air intake meets the block was completely loose. AH! There's my air leak.
Wait a minute? Why is this clamp loose? Nobody besides me has been under the hood for months... Except for the oil change shop. I'm guessing they started out to check the air filter, couldn't figure out how to get to the filter box, took the clamp loose to try to pry the entire air intake off and then gave up without remembering to tighten the clamp. Fits the facts, Jack.
Local Port Charlotte Grease Monkey rating? FAIL
Good news is the car is running silky smooth after tightening the clamp.