C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

'95 with a problem

Thread Tools
 
Search this Thread
 
Old Oct 28, 2012 | 06:09 PM
  #1  
BJ Lookin's Avatar
BJ Lookin
Thread Starter
2nd Gear
 
Joined: Oct 2012
Posts: 2
Likes: 0
From: Oxford AL
Default '95 with a problem

I hope to be retired and a proud first time owner of a beautiful 1995 Corvette. But I'm told it has a few problems, the first two of which are not issues. The third scares me, the owner says she never locks the doors because when the factory alarm/anti-thieft system is activated the car will not start for 30 minutes or so. What could this be?

I have not driven the car, expect to do so in the next few days.
Reply
Old Oct 28, 2012 | 06:18 PM
  #2  
markKlein's Avatar
markKlein
Melting Slicks
15 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: May 2007
Posts: 2,075
Likes: 109
From: Longmont Co
Default

The factory alarm has nothing to do with stopping the car from starting. I suspect she has an aftermarket system installed, which may be having problems. When you check out the car, look at the remote fob. A factory fob looks like this:
coupe http://www.ebay.com/itm/93-96-C4-Cor...ea34dd&vxp=mtr

or convertable
http://www.ebay.com/itm/CORVETTE-C-4...ba6a69&vxp=mtr

note the buttons do say say "lock" or "unlock". If the fob she shows you does not look like this, it is not a factory alarm system (so hopefully it should be easy to remove).

Last edited by markKlein; Oct 28, 2012 at 06:21 PM.
Reply
Old Oct 28, 2012 | 06:28 PM
  #3  
markKlein's Avatar
markKlein
Melting Slicks
15 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: May 2007
Posts: 2,075
Likes: 109
From: Longmont Co
Default

There is a separate system that could prevent starting if it was acting up. The VATS system has resistors on the sides of the key, and if the wrong resistor value is detected, the car will not start. If it is the VATS system causing the problem, the car will not turn over at all. This can happen, and can be intermitent. It is not tied to locking the doors, but could seem to be if you were grasping for answers. Sometimes the problem can be fixed by cleaning the resistors with an eraser or alcohol. Sometimes getting a new key is the answer. Worst case is the ignition would have to be replaced. Again, if the car won't start but cranks, it is not the VATS system.
Reply
Old Oct 28, 2012 | 06:43 PM
  #4  
BJ Lookin's Avatar
BJ Lookin
Thread Starter
2nd Gear
 
Joined: Oct 2012
Posts: 2
Likes: 0
From: Oxford AL
Default

WOW, thanks I think with your comments I have some focus when I get it checked out. I'm like a kid in a candy factory and I hope to have a Corvette in my life for a long time.
Reply
Old Oct 28, 2012 | 08:57 PM
  #5  
markKlein's Avatar
markKlein
Melting Slicks
15 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: May 2007
Posts: 2,075
Likes: 109
From: Longmont Co
Default

Typo. Factory fobs do not say lock and unlock
Reply
Old Oct 28, 2012 | 09:10 PM
  #6  
Old Ben's Avatar
Old Ben
Team Owner
10 Year Member
Veteran: Air Force
 
Joined: Mar 2012
Posts: 27,118
Likes: 135
From: Montgomery, Alabama
2017 C6 of Year Finalist
Default

Get back with us once you test drive it and check out what she is talking about. She may not be accurately describing the problem.
Reply
Old Oct 29, 2012 | 11:06 AM
  #7  
markKlein's Avatar
markKlein
Melting Slicks
15 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: May 2007
Posts: 2,075
Likes: 109
From: Longmont Co
Default

While you are waiting you might enjoy becoming familiar with the C4s. Here is an owners manual for you to look at:
http://www.gmpartshouse.com/download...95corvette.pdf

Suggest you read the section on the parking brake before you look at the car (seriously).

When you pick up your C4 (whether it is this one ot the next one) open a thread and let us know. They have several "unique" aspects we can bring you up to speed on.

Good luck
Reply
Old Oct 29, 2012 | 11:29 AM
  #8  
lt4obsesses's Avatar
lt4obsesses
Le Mans Master
15 Year Member
 
Joined: Dec 2006
Posts: 5,139
Likes: 482
From: H-Town Texas
Default

Unless you're looking for a project to occupy your time, and need something to spend your savings on...keep looking. There are plenty of late C4's out there to choose from without "issues" like these. JMHO

The VATS has nothing to do with door locks, and the delay/ reset time is less than 30 minutes. So there is more to this story than what she says. Hence, my suggestion to keep lookin'.
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 Oct 29, 2012 | 01:15 PM
  #9  
leesvet's Avatar
leesvet
Safety Car
10 Year Member
 
Joined: Apr 2011
Posts: 3,660
Likes: 22
Default

They're ALL going to have some issues at 20 yrs old....some more than others. None are hopeless or uncommon.

VATS and its occasional disfunction can easily be traced and repaired. If nothing else, there is a VATS bypass available that can be installed for a cost of $15 and this eliminated VATS entirely. I prefer to have the security of VATS in my Corvette even though it has caused me to sit in a parking lot for several hours...

If the car is clean, documented maint records and the owner is not a neck-car wanna be, buy it if you like it. Its just parts. They are available and the Corvette community is unlike ANY other band of brothers out there...even vets. There is plently of help, guidence and support. We stick together and between those here in this group, someone has had and succssfully dealt with every potential problem that you can imagine. These are complex mechines and they have complex parts that require special attention and tools sometimes but its available. When you buy a Corvette, its not a car or an investment, its an attitude. When you find one that "grabs" you....go for it. Worst case you learn from it, sell it and move into another. A LOT like a marraige....some require more attention than others but they are ALL good the first few months...(days?)..(nites!)
Reply
Old Oct 29, 2012 | 02:01 PM
  #10  
JM95's Avatar
JM95
Instructor
 
Joined: Nov 2009
Posts: 164
Likes: 2
From: Spring Texas
Default

Check fuel pressure, should be in the range of 38 to 42 PSI. No fuel pressure, bad inline filter pssibly, bad fuel pump, loss of fuel pump relay under passenger dash or bad oil pressure sensor with fuel pump switch built in. Oil pressure and switch contacts close allowing voltage to FP, does oil pressure come up on dash as you are aggressively turning over the engine? There is also the possibility of a blown fuse. With a car that has been exposed to the elements for a long period I would bet on an electrical problem to the fuel pump. Pump is easy to remove in one piece from top of tank and can be bench tested. That said now go after the ignition module coil and next the Optispark. Check high voltage coil wire with a spark gap tester. Remeber only 3 things are required for engine operation, fuel, ignition and air input. Suspect you will find mud in the radiator the result of mixing Dexcool with Green (ethylene glycol) anti freeze. Flush and or replace radiator. Good luck.
Reply

Get notified of new replies

To '95 with a problem





All times are GMT -4. The time now is 10:23 PM.

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