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09-06-2024, 12:05 PM
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#1 |
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Senior Moment
 
Join Date: Mar 2002
Location: Pittsburg Ca
Posts: 4,145
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Sounds like a Lifter but it’s not
Listened to a conversation at last nights Car Show about Injectors and Coils making noise that sounds like a Lifter.
Anyone ever heard of Or experienced this
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1970 CST LS 1 6 speed Ford 9 inch Detroit Tru Track, Dakota Didgital, Vintage Air, QA1 Coil Overs Front & Rear Lots of FUN 2013 GMC PU, Oldest Son 71 GMC LWB. QA1 Suspension, Angry SB. Youngest Son 2019 GMC Diesil Dually. Youngest Son 2017 Toyota SUV Daughters car 2018 Traverse , Wife’s Ride Pittsburg Ca 94565 Last edited by 1970 CST Short Wide; 09-06-2024 at 05:53 PM. |
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09-06-2024, 12:06 PM
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#2 |
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Senior Member
Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,298
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Re: Sounds like a Lifter but it’s not
I have heard an injector tick before and it does sound similar to a lifter, but more faint. Never heard a coil pack make that noise though.
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70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Power windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear |
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09-06-2024, 02:25 PM
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#3 |
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Who Changed This?
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,449
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Re: Sounds like a Lifter but it’s not
Maybe a coil pack if it was leaking to ground?
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~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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09-06-2024, 02:42 PM
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#4 |
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Post Whore
Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,166
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Re: Sounds like a Lifter but it’s not
What engine transmission combination are we talking about?
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help.  RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
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09-06-2024, 04:39 PM
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#5 |
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Registered User
Join Date: Sep 2020
Location: Cleveland, Ohio
Posts: 534
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Re: Sounds like a Lifter but it’s not
My LS injectors made sounds you swear were from a collapsed lifter. They were aftermarket performance injectors though. I have never heard of a factory injector making that much noise.
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09-06-2024, 05:52 PM
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#6 | |
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Senior Moment
Join Date: Mar 2002
Location: Pittsburg Ca
Posts: 4,145
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Re: Sounds like a Lifter but it’s not
Quote:
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1970 CST LS 1 6 speed Ford 9 inch Detroit Tru Track, Dakota Didgital, Vintage Air, QA1 Coil Overs Front & Rear Lots of FUN 2013 GMC PU, Oldest Son 71 GMC LWB. QA1 Suspension, Angry SB. Youngest Son 2019 GMC Diesil Dually. Youngest Son 2017 Toyota SUV Daughters car 2018 Traverse , Wife’s Ride Pittsburg Ca 94565 |
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09-06-2024, 06:27 PM
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#7 |
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All about them K’s
 
Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,401
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Re: Sounds like a Lifter but it’s not
LS engines as a whole are notorious for the “type writer” valve train sound. It’s just what they do. I’ve heard loud injectors before but not coils.
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Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne: 5” lift, 35’s, front dana 60 blah blah blah… http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB: 4” lift 33”s… in a million pieces http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 35x12.5x20’s |
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09-06-2024, 07:36 PM
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#8 | |
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Senior Member
Join Date: Aug 2005
Location: Los Angeles
Posts: 1,334
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Re: Sounds like a Lifter but it’s not
Quote:
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1967 GMC CM-2500 Camper Cruiser, 351E V-6, NP 435 4 speed, Dana 60, and factory A/C. 2012 GMC K-3500 WT regular cab, 6.0L Vortec, 6L90. |
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09-07-2024, 12:55 AM
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#9 |
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Senior Moment
Join Date: Mar 2002
Location: Pittsburg Ca
Posts: 4,145
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Re: Sounds like a Lifter but it’s not
Lots of Good Input. Don’t see the Coil issue but the Injector issue is interesting. Would like to hear more from anyone who might of had this problem
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1970 CST LS 1 6 speed Ford 9 inch Detroit Tru Track, Dakota Didgital, Vintage Air, QA1 Coil Overs Front & Rear Lots of FUN 2013 GMC PU, Oldest Son 71 GMC LWB. QA1 Suspension, Angry SB. Youngest Son 2019 GMC Diesil Dually. Youngest Son 2017 Toyota SUV Daughters car 2018 Traverse , Wife’s Ride Pittsburg Ca 94565 |
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09-07-2024, 07:46 AM
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#10 |
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Senior Member
Join Date: Mar 2003
Location: Colfax-California
Posts: 8,554
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Re: Sounds like a Lifter but it’s not
coil over engine? bad coil or loose spark plug. Ls engine, exhaust leak..broken bolt/s
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09-07-2024, 10:35 AM
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#11 | |
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Senior Member
Join Date: Sep 2014
Location: Lake Tapps, Wa.
Posts: 650
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Re: Sounds like a Lifter but it’s not
Quote:
My 350 V8 had an odd ticking noise thinking the lifters needed adjustment. An exhaust leak from on the passenger side rams horn was the culprit. Turns out the restoration shop from hell struck again.  Went to tighten things up when the very first forward bolt was loose and broken It was glued back in with blue RTV glue thinking no one would notice. The crack (on crack) mechanics struck again.  Just one of many gremlins I have been chasing the last few years.
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Sam 1972 C10 LWB 2020 Z71 Tahoe |
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09-07-2024, 12:09 PM
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#12 | |
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Registered User
Join Date: Dec 2019
Location: LC, Tn
Posts: 11
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Re: Sounds like a Lifter but it’s not
Quote:
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09-07-2024, 02:35 PM
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#13 |
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Registered User
Join Date: Oct 2016
Location: Dallas Texas
Posts: 3,095
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Re: Sounds like a Lifter but it’s not
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My former daily driver had an inline six. The engine cover incorporated a very thick sound insulation pad that sat directly above the injectors and coils. Without the cover, it sounded like all the lifters might have been ticking. -Kevin
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67 C10 fleet fuel injected '70 402, 700r4, 3.73 posi 07 335 sport turbo 6sp 94 Trans Am GT LT1 6sp posi -- sold after 22yrs 99 540 sport V8 6sp -- sold 73 240z L24 4sp -- given to friend 68 C10 step 350/350 3.73 open -- sold |
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