C3 General General C3 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

stock 79

Thread Tools
 
Search this Thread
 
Old Dec 28, 2018 | 03:20 AM
  #1  
grumpyonetwo's Avatar
grumpyonetwo
Thread Starter
Instructor
 
Joined: Mar 2015
Posts: 143
Likes: 6
From: Berwick Victoria
Default stock 79

Hello everyone, this tread is coming to you from down under (summertime here) Took my 79 out for a run today, its been 2 weeks since our last outing. when i first started the car up, it was reving higher than normal. I put that down to the 2 weeks non driving, but it took longer than normal for revs to drop down to normal. During my drive, i had this feeling that the car was running higher revs than normal, also i thought that i had to apply more pressure to my brake pedal to pull the car up. Now has anyone had this happen to them? if so how was this problem solved? Also on my return trip home, my tacho stopped working, is this just normal probs with owning a corvette, as i have had no problems for nearly 3 years
Reply
Old Dec 28, 2018 | 06:27 AM
  #2  
Easy Mike's Avatar
Easy Mike
Team Owner
Supporting Lifetime
20 Year Member
 
Joined: Jun 2000
Posts: 38,923
Likes: 1,482
From: Southbound
Cruise-In II Veteran
Default

FWIW: you may have a vacuum leak.
Reply
Old Dec 29, 2018 | 05:01 PM
  #3  
G dad's Avatar
G dad
Burning Brakes
20 Year Member
 
Joined: Jun 2005
Posts: 764
Likes: 2
From: THE OLDER I GET THE BETTER I WAS! NORTHERN ONTARIO
Default

Sounds to me like the choke is not pulling off all the way stuck on the high idle cam spray some carb cleaner on the choke linkages they may be full of crud...as for your tach the wire may have come off the distributor check that before anything ...also perhaps the tach board is done quite common for your year I have a 79 and the board did go on it I also replaced the tach filter
Reply
Old Dec 29, 2018 | 05:37 PM
  #4  
grumpyonetwo's Avatar
grumpyonetwo
Thread Starter
Instructor
 
Joined: Mar 2015
Posts: 143
Likes: 6
From: Berwick Victoria
Default

Thank you Easy Mike and G dad, i started my car up the next day and the car idled correctly and also the tacho worked fine.
The day i went for a drive it was hot and very humid so the weather might have been playing havoc with the car, the brakes seemed to have
the same problem "more pressure to stop the car" so this will give me something to sort out before i have to go back to work.
again thanks for the tips.
Reply
Old Dec 30, 2018 | 08:23 PM
  #5  
blk79nj's Avatar
blk79nj
Pro
15 Year Member
All Eyes On Me
Liked
Loved
 
Joined: Aug 2007
Posts: 707
Likes: 31
From: Pitman NJ
Default

Originally Posted by G dad
Sounds to me like the choke is not pulling off all the way stuck on the high idle cam spray some carb cleaner on the choke linkages they may be full of crud...as for your tach the wire may have come off the distributor check that before anything ...also perhaps the tach board is done quite common for your year I have a 79 and the board did go on it I also replaced the tach filter
I agree with this assessment. Check to see if the choke is stuck shut, or not coming off completely, leaving it in fast idle.
Reply

Get notified of new replies

To stock 79





All times are GMT -4. The time now is 07:15 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE