The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 11-10-2010, 08:44 PM   #1
Stringer
Registered User
 
Join Date: Sep 2010
Location: Kerrville, TX
Posts: 87
Pickup coil noise

Howdy. Just finished (with some help) a new intake manifold gasket. Also put on a new cap and rotor. Now - sometimes - I have a tapping, clicking noise that somebody said was probably the pickup coil. Seems like it is coming from the distributor.

Truck runs fine. This is a 72 with a 90 model 350 TBI. Might it reseat itself as the parts guy told me? Might I be left on the side of the road sooner instead of later? Just not sure what to think. Runs good but has that noise. Thanks for any ideas.
Stringer is offline   Reply With Quote
Old 11-10-2010, 09:06 PM   #2
llowlife
Registered User
 
Join Date: Jan 2010
Location: Elgin Mn
Posts: 112
Re: Pickup coil noise

Bout the only reason I can think of for a tapping noise from the dist is due to worn bushings unless something got installed incorrectly or something loosened up. Take a relook at installed items. Look for any interference from the rotor and capand wiggle the shaft from side to side. It should be pretty tight.
__________________
In the beginning of a change, the patriot is a scarce man, brave hated and scorned. When his cause succeeds however, the timid join him , for then it costs nothing to be a patriot.
I am a revolutionary...so my son can be a farmer...so his son can be a poet. If there must be trouble, let it be in my day, so my child may have peace...

72 short step w/ 388 /4l80e/ and 3.08 gears.
llowlife is offline   Reply With Quote
Old 11-10-2010, 11:32 PM   #3
geezer#99
Registered User
 
geezer#99's Avatar
 
Join Date: Aug 2009
Location: Bowser
Posts: 13,731
Re: Pickup coil noise

Take a long piece of old garden hose or use a long wooden dowel to use as a stethoscope to pinpoint exactly where the noise is coming from. Don't laugh. It works.
geezer#99 is online now   Reply With Quote
Old 11-11-2010, 12:06 AM   #4
Stringer
Registered User
 
Join Date: Sep 2010
Location: Kerrville, TX
Posts: 87
Re: Pickup coil noise

Will do. Been trying to read old posts about this but haven't seen anything about the noise. It's a spark sound but it sorta sounds like a June bug hittin the glass.
Stringer is offline   Reply With Quote
Old 11-11-2010, 12:45 AM   #5
dadsworktruck
Registered User
 
Join Date: Jul 2009
Location: blacksburg,s.c.
Posts: 155
Re: Pickup coil noise

Might be a spark plug wire not seated or crack in cap, you could fire the truck up in the dark see if you can find a plug wire jumping the gap some place it isnt suppose to be.
dadsworktruck is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 05:25 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com