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I have roushs single adjustable coilovers on my 2015 mustang. When the rear end flexes going over bumps or speed bumps, things like that, the rear suspension creaks like if I was walking on a creaky wooden floor, any ideas how to quiet it up? Do I need to tighten anything or grease anything? Thanks

Nothing at all

My guess since is has to do with me turning

Rpm doesn’t really matter, but I’d say so, I can have it at cruise going 60-70 and it’ll do it. But going WOT in a straight line never sees positive knock.

WOT is fine, part throttle like just cruising is where I’m getting knock.

I did

I did, they told me to check my steering shaft

Nope not yet

Got a 2015 Mustang with a roush 2.3 blower on in. Tuned by Lund. I’m having a problem with positive knock up to 8 degrees when normal driving and turning the steering wheel in the slightest. The knock hangs and slowly drops down to 0, or I can let off the throttle and it instantly drops. Not...

Not really, once the car has been off for about 30 seconds or so the start time is the same. But if I turn the car off and right back on, it takes maybe 2-3 seconds to crank.

So I took the old one, blew into the outlet hose and air flows through the pump, shouldn’t it be blocked by the check valve assuming it’s in there and working?

Those are the 2 I got as well.

Right there highlighted says integrated, So that’s interesting you didn’t see anything

Well I was disappointed on the first 2 lol

Hard to tell, this is the second pump in a week, hard to believe I’d get sent 2 pumps back to back that never got that check valve installed, but they are being sent Back to DW so they can check them over. Then again I bought these 2 from dnahyperformance.com. The 3rd is being sent to me...

Talked to DW yesterday, their new pumps have them, even says it on the paper work in the box.

Also the time varies, if the car is on an incline where the front end is higher, it starts a lot quicker. Doesn’t seem tune related to me.

It’s being tuned by Lund, I highly doubt they are to blame, they are very reputable

I did, they couldn’t find anything wrong