Suspicious sounds from the GXP engine? - Pontiac Solstice Forum
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post #1 of 8 (permalink) Old 03-09-2019, 10:06 AM Thread Starter
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Suspicious sounds from the GXP engine?

Hi Guys,

can somebody identify this "possible" issue I hear from my engine?
The video includes 2 different sounds coming off the engine. Can you tell me, if its a problem I need to fix?? or what is it? I dont like it, it sounds like old diesel

sound #1 more like diesel rattle
sound #2 clock ticking

VIDEO here:
https://drive.google.com/open?id=1eG...LEv4rb1VBX5AJU

thanks

Patrik Spacek
Founder of Went2Play
Video Games Developer

Last edited by patrikspacek; 03-09-2019 at 10:09 AM. Reason: miss spelling
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post #2 of 8 (permalink) Old 03-09-2019, 10:21 AM
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Not sure what the first one is, other than normal.

Second one is the HPFP. Definitely normal.
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Owner of "Campbelle", a Brazen 2008 GXP ... with mods piling up...
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post #3 of 8 (permalink) Old 03-09-2019, 12:27 PM
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I think its just the way they sounds close the hood.
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post #4 of 8 (permalink) Old 03-09-2019, 02:47 PM
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Both are your High Pressure Fuel Pump(HPFP)...normal sounds. Vid1 is your HPFP when your motor is cold and it sounds like a diesel. Vid 2 is normal once all sensors reach operating temp...clock tick. Both are you HPFP at different cycles.
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post #5 of 8 (permalink) Old 03-09-2019, 03:18 PM
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Sounds just like my GXP
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post #6 of 8 (permalink) Old 03-09-2019, 06:00 PM
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The sounds of LNF magic... drive that bad boy!
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2008 GXP Aggressive Red - SOL LVR - Trifecta custom tune - DDM CAI/charge tubes/silicone hoses - Werks IC - Solo Hi-flow Cat/Mach Shorty exhaust - DDM Probeam/Backbone/Venom brace - Short throw shifter - Full LED conversion - Michelin Pilot Sport 4S
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post #7 of 8 (permalink) Old 03-10-2019, 01:12 PM
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Sounds normal to me.

Do you have the noise blanket under the engine cover? (There's also a small one over the HPFP.)

Someone should make an active noise cancellation device for the pump.
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Blue-ish 2006 2.4, Werks stage 1 turbo, Borla cat-back, DDM braces, Spec aluminum flywheel, Spec stage 2 clutch, Werks aluminum radiator, some gauges, RKSport hood, Morimoto FX-Rs, GReddy Profec, Norm's fenders

'07 GXP, RPM Stage 2, Solocatless downpipe, TCE Wilwood 6 piston front brakes, 4-piston rears , Stainless brake lines, slotted/drilled rotors, BC Racing BR coilovers, Performance Autowerks intercooler, DDMWorks CAI, charge pipes and braces
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post #8 of 8 (permalink) Old 03-14-2019, 06:32 AM Thread Starter
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Thanks a lot guys! This baby has 105K and still kicks like crazy...

Patrik Spacek
Founder of Went2Play
Video Games Developer
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