Pennock's Fiero Forum
  Technical Discussion & Questions
  2.8 engine idle and gas let off strange thumping

Post New Topic  Post A Reply
Email This Page to Someone! | Printable Version


next newest topic | next oldest topic
2.8 engine idle and gas let off strange thumping by Jecklen16
Started on: 01-08-2014 06:42 PM
Replies: 2 (71 views)
Last post by: BrittB on 01-08-2014 11:52 PM
Jecklen16
Member
Posts: 71
From: norfolk va usa
Registered: Oct 2013


Feedback score: N/A
Leave feedback

Rate this member

Report this Post01-08-2014 06:42 PM Click Here to See the Profile for Jecklen16Click Here to Email Jecklen16Send a Private Message to Jecklen16Edit/Delete MessageReply w/QuoteDirect Link to This Post
When I let my 85 2.8 idle there is this random sound like someone thumping there finger on a plastic bucket. It's a deep thump. When I press on the gas it does the same thing. Also when I let off the throttle my exhaust makes a gurgling sound and at one point has a small backfire sound. Any ideas?
IP: Logged
PFF
System Bot
Gall757
Member
Posts: 10651
From: Holland, MI
Registered: Jun 2010


Feedback score: N/A
Leave feedback





Total ratings: 88
Rate this member

Report this Post01-08-2014 09:05 PM Click Here to See the Profile for Gall757Send a Private Message to Gall757Edit/Delete MessageReply w/QuoteDirect Link to This Post
The gurgle and backfire is pure 2.8. A lot of them do that. The thumping sound may be more serious.
IP: Logged
BrittB
Member
Posts: 453
From: Keizer, OR
Registered: Dec 2013


Feedback score: N/A
Leave feedback

Rate this member

Report this Post01-08-2014 11:52 PM Click Here to See the Profile for BrittBSend a Private Message to BrittBEdit/Delete MessageReply w/QuoteDirect Link to This Post
Do a compression test to rule out a burnt valve.
IP: Logged

next newest topic | next oldest topic

All times are ET (US)

Post New Topic  Post A Reply
Hop to:

Contact Us | Back To Main Page

Advertizing on PFF | Fiero Parts Vendors
PFF Merchandise | Fiero Gallery | Ogre's Cave
Real-Time Chat | Fiero Related Auctions on eBay



Copyright (c) 1999, C. Pennock