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06-07-2006, 08:16 PM
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#1 |
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SCMC Member
Join Date: Apr 2005
Location: rhode island
Posts: 408
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injectors
could the fuel injectors in a 04 cobra make enough noise for me to think im hearing a possible lifter noise
  
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06-07-2006, 09:46 PM
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#2 |
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Registered User
Join Date: Nov 2004
Location: Charlotte, NC
Posts: 1,374
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yes...they do make a lot of noise...
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2004 Cobra HP Twin 67's 785rwhp on 9lbs of boost |
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06-08-2006, 07:19 AM
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#3 |
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Don't let the dog drive
Join Date: Apr 2004
Location: Kinston, NC
Posts: 1,883
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Yes and no.... They do make a distinct sound but will have a certain frequency since they are firing in sequence. A lifter or valve lash adjuster may tap periodically at a different rate since it may only affect one valve. Do you hear it when cold or all the time? There is a slight piston slap that may occur when the motor is cold but should not sound like a Cummins Diesel at any point in time. IF you hear a knonk or tap (not detonation) it may be a collaped valve lash adjuster lacking sufficient oil pressure. If it just started it may be cured with solvents (motor flush) in the oil followed immediatly by an oil change. Also, the PCV valve will make some noise as well. The EGR will make a loud clicking sound when it opens and closes but it has a slow response when it is operating (sounds like the clutch engaging on the AC compressor).
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2004 SVT Cobra, Silver, February 2004 SVT Build # 2485 out of 3768 SLP Loudmouth Cat-back UPR double lock firewall adjuster  UPR GMS extreme double hook quadrant Wheels: Ford SVT 10th anniv. wheels (track duty) SVE 10th anniv. style 17x9F, 10x10.5R BBS RK Plasma 18x8.5F, 18x10R (retired) (retired) 2001 black SVT Cobra, October 2001 missed but not forgotten 
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