C4 General Discussion General C4 Corvette Discussion not covered in Tech

Acceration problem

Thread Tools
 
Search this Thread
 
Old Dec 11, 2010 | 02:57 PM
  #1  
jabez's Avatar
jabez
Thread Starter
Race Director
15 Year Member
 
Joined: Apr 2004
Posts: 17,066
Likes: 3
From: Milpitas ca
Default Acceration problem

I seem to lose the ability to accelerate on my 92 auto.
In town driving around 30-35 mph the car drives fine. When I hit the Highways I floor it and the car starts to tremble ,shake,surge back and forth.

Need suggestions and ideas.
Reply
Old Dec 11, 2010 | 03:17 PM
  #2  
sailorsteve's Avatar
sailorsteve
Drifting
Supporting Member
15 Year Member
Liked
Loved
 
Joined: Jun 2010
Posts: 1,853
Likes: 8
From: Westerly RI
Default

Some ideas:

Replace the fuel filter.

Check the cats. With the car warmed up and idling, CAREFULLY check to see if the pipe temps seem roughly equal upstream and downstream of the cats. If hotter upstream, cats are partly plugged.

How many miles on plugs, wires, etc. Is it time for a tuneup?

How clean is the air filter?

Pull codes to see if there are emissions systems issues.
Reply
Old Dec 11, 2010 | 05:51 PM
  #3  
rithsleeper's Avatar
rithsleeper
Drifting
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Dec 2007
Posts: 1,672
Likes: 8
From: Sumter South Carolina
Default

easy fix... cut exhaust after manifolds, remove excess. Then replace manifold and up with carb setup. Might sacrifice fuel economy but everyone would look at you and think, man that guy gets it. He is so awesome.

seriously though, I agree with sailorsteve, he hit the nail for all my past problems/ experiences. Fuel filter has been the culprit a few times
Reply
Old Dec 11, 2010 | 10:26 PM
  #4  
jabez's Avatar
jabez
Thread Starter
Race Director
15 Year Member
 
Joined: Apr 2004
Posts: 17,066
Likes: 3
From: Milpitas ca
Default

Originally Posted by sailorsteve
Some ideas:

Replace the fuel filter.

Check the cats. With the car warmed up and idling, CAREFULLY check to see if the pipe temps seem roughly equal upstream and downstream of the cats. If hotter upstream, cats are partly plugged.

How many miles on plugs, wires, etc. Is it time for a tuneup?

How clean is the air filter?

Pull codes to see if there are emissions systems issues.
Well I get no codes and fuel filter and air filter was replace within the last month. Plugs and wires were changed about 5-6 years ago. Maybe I will check into those.
Reply
Old Dec 14, 2010 | 07:11 PM
  #5  
jabez's Avatar
jabez
Thread Starter
Race Director
15 Year Member
 
Joined: Apr 2004
Posts: 17,066
Likes: 3
From: Milpitas ca
Default

Replacing the Plugs and wires did the trick! Thanks guys. Everything in the universe is fine again.
Reply
Old Dec 14, 2010 | 08:13 PM
  #6  
F40's Avatar
F40
Le Mans Master
 
Joined: Apr 2007
Posts: 5,401
Likes: 0
From: Phx Arizona
Default

I was thinking fuel problem
Reply
Old Dec 14, 2010 | 08:14 PM
  #7  
pcolt94's Avatar
pcolt94
Le Mans Master
15 Year Member
 
Joined: Jan 2006
Posts: 5,620
Likes: 206
From: Orlando FL
Default

Originally Posted by jabez
Replacing the Plugs and wires did the trick! Thanks guys. Everything in the universe is fine again.
Congratulations, you must live right. If those symptoms were mine, it would be an opti.
Reply
Old Dec 14, 2010 | 09:51 PM
  #8  
F40's Avatar
F40
Le Mans Master
 
Joined: Apr 2007
Posts: 5,401
Likes: 0
From: Phx Arizona
Default

Forgot about the opti spark
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-1

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-2

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-3

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-4

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-5

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-6

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-7

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-8

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-9

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
Old Dec 17, 2010 | 12:37 AM
  #9  
jabez's Avatar
jabez
Thread Starter
Race Director
15 Year Member
 
Joined: Apr 2004
Posts: 17,066
Likes: 3
From: Milpitas ca
Default

Originally Posted by pcolt94
Congratulations, you must live right. If those symptoms were mine, it would be an opti.
Well my Opti crap out on me 3 years ago and I replaced it with an MSD.
Reply

Get notified of new replies

To Acceration problem





All times are GMT -4. The time now is 03:48 AM.

story-0
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-1
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
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE