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 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 12-06-2011, 11:00 PM   #1
juiceman650
Registered User
 
juiceman650's Avatar
 
Join Date: Jan 2011
Location: San Bruno, CA.
Posts: 348
Engine Problems

Hey guys, so about a week ago I was driving on my way home and I was cruising at about 30 MPH when my truck began to make a *hissss* sound followed by a *POP* so I decided to floor it up to 50 and it seemed to go away, so I cruise back down to 30 and Lesotho it there and it returns. 3 days later I take it out and it runs fine. I tried taking it out Saturday night, back half way out of the driveway and got the *hiss, POP* TWICE and the truck died. I let it coast down the hill, then gassed it a little and the *hiss POP* was STILL there. WHAT'S GOING ON? My Plug wires are fine, they have less than 100 miles on em, they're all on snug. The only things I've done is changed the air filter, and radiator hoses. I'm guessing its the Spark Plugs. It idles fine, there is some faint popping out the exhuast at idle, but its rough when the tryck is in gear and under a load. Please help a brother out.
Posted via Mobile Device
__________________
1975 Chevy Cheyenne w/ v8 350 and TH350
Siverado interior
Fleetside bed
aka "The Beast" aka "Cheyerado"
juiceman650 is offline   Reply With Quote
Old 12-07-2011, 09:41 PM   #2
79k30dually
Registered User
 
Join Date: Aug 2011
Location: Newark Ohio
Posts: 122
Re: Engine Problems

I'd be inclined to remove the valve covers and inspect the valve springs. Possibly do a compression test, leak down but do the the tests before you drop a valve. Good luck, Ron.
79k30dually is offline   Reply With Quote
Old 12-07-2011, 10:59 PM   #3
juiceman650
Registered User
 
juiceman650's Avatar
 
Join Date: Jan 2011
Location: San Bruno, CA.
Posts: 348
Re: Engine Problems

Thanks for the info, I'll see if I can do that sometime soon.
Posted via Mobile Device
__________________
1975 Chevy Cheyenne w/ v8 350 and TH350
Siverado interior
Fleetside bed
aka "The Beast" aka "Cheyerado"
juiceman650 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 11:20 PM.


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