When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Depending on the situation most GM (as well as other brands) have the A/C compressor operating off and on whenever the car is running. Helps keep the cabin dry and the windshield from fogging. Open your hood and observe the A/C compressor and see if it cycles "on it's own." Then get "Trained Helper B" to cycle the A/C heat as you watch the compressor. It should cycle on and off in conjunction with the heater control. See if this affects your idle.
That is an aftermarket air intake. Also, it looks like you are missing the underhood duct that directs air coming out of the upper half of the radiator through the hood. Was that removed to give you more room to work on the intake? With the intake and the catch can installed we know the car is definitely not stock. Do you know if it was tuned or if any other mods were performed on the car? The mods may be causing your idle fluctuations if the compressor isn't.
That is an aftermarket air intake. Also, it looks like you are missing the underhood duct that directs air coming out of the upper half of the radiator through the hood. Was that removed to give you more room to work on the intake? With the intake and the catch can installed we know the car is definitely not stock. Do you know if it was tuned or if any other mods were performed on the car? The mods may be causing your idle fluctuations if the compressor isn't.
Bill
I removed the duct to make room but I did find it odd that my m7 c7 has an iron clad looking hose vs this one. This car is suppose to be stock and I’ve had since 3k miles. Do you happen to know what parts would make this stock?
btw reattaching the intake thing fixed the rpm issue
That is an aftermarket air intake. Also, it looks like you are missing the underhood duct that directs air coming out of the upper half of the radiator through the hood. Was that removed to give you more room to work on the intake? With the intake and the catch can installed we know the car is definitely not stock. Do you know if it was tuned or if any other mods were performed on the car? The mods may be causing your idle fluctuations if the compressor isn't.
not positive but I think those lines are the coolant lines to the charge air cooling system, although it's not stock because I don't recall mine having that "manifild" looking block that you circled
no idea what kind of mod that is
but again, I'm not sure, I'm sure somebody on here will know
not positive but I think those lines are the coolant lines to the charge air cooling system, although it's not stock because I don't recall mine having that "manifild" looking block that you circled
no idea what kind of mod that is
but again, I'm not sure, I'm sure somebody on here will know
That looks like a catch can to me. If you have have a catch can …. I’m thinking you may have an aftermarket cam. A cam with some extra overlap compared to stock will make your idle fluctuate for sure.
When your car idles does it sound smooth ? Or is there a bit of a “chop” as we call it.
