I noticed my engine will make a "slapping" sort of noise when I start it up sometimes. Its not every time I start the car but frequently enough for me to notice and catch onto it. Does anyone know what this noise might be?
Noise starts at 0:11 and ends at 0:14
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03 DSG Mach 1
Stroked/Forged, Heads, Cams, Long Runner Intake, Built Cobra IRS, Cobra Fuel System
I know the ls1 based truck motors did something similar. It did it on mine but not nearly as loud. It would do it at least until reached operating temp.
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The Queen:
2013 Race Red Mustang GT 6MT: 20" AMR's, GT500 AB, JBA LT's and ORX, SCT SF3/X3, MGW Short Throw, Some Carbon Wrap, Spoiler Delete, Eibach Sportlines, Koni STR.T's, BMR LCA's, BMR Relo Brackets, BMR UCA, Freedom Racing PHB, Maximum Motorsports CC Plates, BMR Safety loop, DSS Aluminum DS
Castrol GTX 5W-30 with a Fram Tough Guard filter. I was told on another forum the Fram is a really bad filter to run with the 4V. Also, I was told by the previous owner to not run synthetic till it hit 50k miles (currently at a little over 48k) since the engine was rebuilt not long ago (mileage-wise - year-wise it was 2008).
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03 DSG Mach 1
Stroked/Forged, Heads, Cams, Long Runner Intake, Built Cobra IRS, Cobra Fuel System
Castrol GTX 5W-30 with a Fram Tough Guard filter. I was told on another forum the Fram is a really bad filter to run with the 4V. Also, I was told by the previous owner to not run synthetic till it hit 50k miles (currently at a little over 48k) since the engine was rebuilt not long ago (mileage-wise - year-wise it was 2008).
I have heard bad things about Fram and their anti-flow back valves on the filters. I had a similar sound on my Jeep Wrangler when I ran a Fram once... switched back to the Mopar one and the noise went away.
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2014 GT Premium 6-Speed in Sterling Gray Metallic with Black Leather Interior
Track Pack, Comfort Package, Electronics Package, Security Package, and GT Coupe Accessory Package 5
Mods: MGW Shifter, GT500 Axlebacks, Hood Struts, and Sound Tube Delete
I have heard bad things about Fram and their anti-flow back valves on the filters. I had a similar sound on my Jeep Wrangler when I ran a Fram once... switched back to the Mopar one and the noise went away.
Really? That's what the other person said. Seems like its the first step I need to take. Is it likely that something is damaged or am I probably okay? It hasn't been happening for too long.
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03 DSG Mach 1
Stroked/Forged, Heads, Cams, Long Runner Intake, Built Cobra IRS, Cobra Fuel System
Castrol GTX 5W-30 with a Fram Tough Guard filter. I was told on another forum the Fram is a really bad filter to run with the 4V. Also, I was told by the previous owner to not run synthetic till it hit 50k miles (currently at a little over 48k) since the engine was rebuilt not long ago (mileage-wise - year-wise it was 2008).
The whole mileage thing is BS. You can use synthetic whenever. Switch to a Wix or OE Ford filter see if it helps.
Really? That's what the other person said. Seems like its the first step I need to take. Is it likely that something is damaged or am I probably okay? It hasn't been happening for too long.
I have never heard anyone say they had damage from this, but it probably isn't "good" for the engine.
I would think it is just a cheap first step to troubleshoot. Quart or two of oil and a new filter is less than 30 bucks.
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2014 GT Premium 6-Speed in Sterling Gray Metallic with Black Leather Interior
Track Pack, Comfort Package, Electronics Package, Security Package, and GT Coupe Accessory Package 5
Mods: MGW Shifter, GT500 Axlebacks, Hood Struts, and Sound Tube Delete
I'd throw some motor honey in the oil and sell it... OK it might not be that bad.. you are thinking its rod knock and you want us to give another answer.. it could .. might maybe be piston slap.. it might have been there since you bought it?? In which case.. allllll ls motors do it, Mercedes do it and some new 5.0 do it.. just keep track of it and see if it gets worse
Slapping noise on start up - intermittent
Linear Mode
