C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

1975 Vette Won't Start

Thread Tools
 
Search this Thread
 
Old 02-08-2017, 11:25 AM
  #1  
stardating
Cruising
Thread Starter
 
stardating's Avatar
 
Member Since: Jan 2017
Posts: 10
Likes: 0
Received 1 Like on 1 Post
Default 1975 Vette Won't Start

Hey everyone!

Yesterday, I was running my vette in the drive way, as I could not take her out for a proper drive like we usually do about every week (I had school reading assignments due and was reading textbooks while occasionally pressing lightly on the gas).

I turned her off and continued to read after she got to a pretty good temperature (around 180 degrees, according to the gauge) and waited about 20 minutes before my mom came home so she could help me direct her into the garage once more, without banging into something (small garage).

However, she would not start. Deader than a doorknob, not even a hint of a drop of power going into anything. Usually, if she doesn't start, she just needs some more gas and we hear something: the engine rev up, the radio come on, etc. This time, dead silence.

We tried to jump start her with my mom's car, but nothing. We also manually pushed her into the garage and then connected the battery to a battery charger we have (on the lower setting) and left her in the garage for a few hours. Nothing, when we checked back later that evening.

Does anyone have any idea what might be causing this? We make sure to give her a good drive around town, so she doesn't sit idle for a long length of time and we had replaced the battery June or July last year (thankfully, the battery is still under warranty).

I called my mechanic about this situation and he said to fill her up with some more gas (she currently has about 1/4 of a tank and I planned to fill her up during next week's drive) and check the battery fuses, to see if they popped. However, I do not know what those look like and from what I saw, the battery looked normal. Or as normal as a battery that is in a compartment behind the driver's seat looks.

Any suggestions or information about the battery fuses and what my mechanic meant by them "popping" would be immensely helpful and appreciated.

Thank you for taking the time to read this!

Sincerely,

Nicole
Old 02-08-2017, 11:39 AM
  #2  
ENCSDOUG
Racer

 
ENCSDOUG's Avatar
 
Member Since: Aug 2013
Location: Fayetteville NC
Posts: 339
Received 54 Likes on 52 Posts
Default

Popping of a fuse means it's blown (Blown fuse). How to check them properly would be to carefully pull the fuse out and test them with a multi meter. There is a mode on that meter to test for continuity. You touch the 2 meter probes together and it should have a low pitch ring. Then put the probes on each end of the fuse and if it rings, your fuse is good. No ring, it's bad. Or, just by looking at the fuse you might be able to see the element inside the glass fuse and see if it's broken which means it's bad/blown and needs replaced. Good Luck!
Old 02-08-2017, 12:03 PM
  #3  
Kevova
Le Mans Master
 
Kevova's Avatar
 
Member Since: Sep 2013
Location: near the thumb in the mitten
Posts: 6,138
Received 732 Likes on 683 Posts

Default

I would start at the battery make sure there is no corrosion at battery terminals. Do you have a test light or voltmeter? If so, see if there is 12.6 volt across battery, also check to see if there is 12v to alternator or if a test light it lights bright. The idea is to find out where voltage is or isn't.
Old 02-08-2017, 12:27 PM
  #4  
mvftw
Melting Slicks
 
mvftw's Avatar
 
Member Since: Feb 2003
Location: Long Island NY
Posts: 2,284
Likes: 0
Received 6 Likes on 6 Posts

Default

If it's dead, no cranking, I would check if it's in Park...Saftey Neutral switch...
Old 02-08-2017, 01:16 PM
  #5  
OldCarBum
Race Director
 
OldCarBum's Avatar
 
Member Since: Mar 2016
Location: Napa California
Posts: 10,442
Received 4,696 Likes on 2,936 Posts
Default

Are your battery cables the originals?
I was checking my battery cables when I first purchased my 73, and found they are the original cables .
The connections were clean but there was a little corrosion where the braided cable comes out of the insulation. I started cleaning the corrosion and found that my positive battery cable was badly corroded under the insulation. I cut back the insulation about three inches before I found good wire. I installed new connectors and so far no problems. I'll be replacing them soon.
Old 02-08-2017, 03:18 PM
  #6  
dochorsepower
Drifting
 
dochorsepower's Avatar
 
Member Since: Sep 2010
Location: Laguna Niguel California
Posts: 1,412
Received 49 Likes on 42 Posts

Default

If you have checked all of the above and all is good, it is very likely a bad starter solenoid. If you try again and it magically starts, I would recommend changing the solenoid before you get stuck somewhere you don't want to be.
Old 02-08-2017, 03:22 PM
  #7  
lvmyvt76
Melting Slicks
 
lvmyvt76's Avatar
 
Member Since: May 2011
Location: Springfield Missouri
Posts: 2,755
Received 121 Likes on 118 Posts
Default

putting more gas in won't make the engine crank, and this was told to you by a mechanic???? don't take your car to him!!
Old 02-09-2017, 05:34 AM
  #8  
Fredric Björnefält
Instructor
 
Fredric Björnefält's Avatar
 
Member Since: Nov 2016
Location: Stockholm Sweden
Posts: 166
Received 42 Likes on 29 Posts
Default

Check if it's in park. Might be a loose cable at the horn relay or missing ground
Old 02-09-2017, 11:47 AM
  #9  
stardating
Cruising
Thread Starter
 
stardating's Avatar
 
Member Since: Jan 2017
Posts: 10
Likes: 0
Received 1 Like on 1 Post
Default

Hey guys!

Thanks for the advice. My brother (who has returned from the Navy) and I looked at her again yesterday and with the help of a neighbor, who has also restored a Vette, think it might be a connection problem somewhere between the battery and the engine compartment. Otherwise, everything else looks fine and normal. The roads here are not the best, so hopefully something is just loose and not corroded or chewed by something.

I'll be sure to update as we go along!

Nicole
Old 02-09-2017, 01:50 PM
  #10  
Fredric Björnefält
Instructor
 
Fredric Björnefält's Avatar
 
Member Since: Nov 2016
Location: Stockholm Sweden
Posts: 166
Received 42 Likes on 29 Posts
Default

Then I would bet my money on the starter motor. It doesn't need much vibrations to loosen those wires connected to it! Check both ground and power cables because if the starter doesn't even "click" there is no power to it or enough ground. Good luck!
Old 02-11-2017, 08:17 PM
  #11  
The Punisher
Melting Slicks
 
The Punisher's Avatar
 
Member Since: Oct 2006
Location: hebron IL
Posts: 2,920
Received 167 Likes on 141 Posts
C3 of Year Finalist (appearance mods) 2019

Default

Did you figure it out yet? You mentioned you had no power going to anything. I believe there is a fusible link that goes to the starter that may have blown or the connector has coroded.
Old 02-11-2017, 08:57 PM
  #12  
stardating
Cruising
Thread Starter
 
stardating's Avatar
 
Member Since: Jan 2017
Posts: 10
Likes: 0
Received 1 Like on 1 Post
Default

No, I have not had a chance to dig further (I am currently a full-time student in college and I have some exams on Monday). But hopefully, after school on Monday, I can take a look and if I feel it is too much for me to handle (novice here), then I have some local mechanics I can call.
Old 02-12-2017, 09:52 AM
  #13  
stumpshot
Racer
 
stumpshot's Avatar
 
Member Since: Sep 2011
Location: Humboldt county Ca
Posts: 414
Received 55 Likes on 50 Posts
Default

You don't mention if it's automatic or standard that I saw. A no start condition could be due to a starter lock out switch being bad. If you have no power to anything with the key in run or accessory, I would suspect the battery connections first. I've always hated those side post batteries in a tight compartment. Get back there and see if you can wiggle the cables and tighten them up before you start tearing stuff apart. Try the easy stuff first.
Old 02-12-2017, 10:16 AM
  #14  
Kevova
Le Mans Master
 
Kevova's Avatar
 
Member Since: Sep 2013
Location: near the thumb in the mitten
Posts: 6,138
Received 732 Likes on 683 Posts

Default

if you are going to try to DIY repairs on your car. I would get a Factory Service Manual it will have all the information you need. Digital is ok if it's on a tablet, or you have a way to print pages.
Old 07-05-2018, 12:55 PM
  #15  
Keegandm
3rd Gear
 
Keegandm's Avatar
 
Member Since: Jul 2018
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
Default Same issue.

I'm having the same issue. One day it runs perfectly fine the next day I have no power anywhere. I replaced the battery tuesday and it started just fine. Ran tuesday and wednesday. I go to start it today and again I have no power. Alternator is only a couple years old. I'm guessing it's a wiring issue but from where?
Old 07-05-2018, 02:04 PM
  #16  
derekderek
Race Director
 
derekderek's Avatar
 
Member Since: Jul 2015
Location: SW Florida.
Posts: 13,022
Received 3,388 Likes on 2,633 Posts
Default

Battery terminals need pulled and cleaned.
Old 07-05-2018, 02:49 PM
  #17  
The Punisher
Melting Slicks
 
The Punisher's Avatar
 
Member Since: Oct 2006
Location: hebron IL
Posts: 2,920
Received 167 Likes on 141 Posts
C3 of Year Finalist (appearance mods) 2019

Default

Originally Posted by Keegandm
I'm having the same issue. One day it runs perfectly fine the next day I have no power anywhere. I replaced the battery tuesday and it started just fine. Ran tuesday and wednesday. I go to start it today and again I have no power. Alternator is only a couple years old. I'm guessing it's a wiring issue but from where?
Get yourself a digital multimeter and check your battery voltage. Have you tried jump starting?

Get notified of new replies

To 1975 Vette Won't Start

Old 07-06-2018, 02:56 PM
  #18  
dochorsepower
Drifting
 
dochorsepower's Avatar
 
Member Since: Sep 2010
Location: Laguna Niguel California
Posts: 1,412
Received 49 Likes on 42 Posts

Default

One more time - STARTER SOLENOID!
Old 07-23-2018, 05:58 PM
  #19  
Keegandm
3rd Gear
 
Keegandm's Avatar
 
Member Since: Jul 2018
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by The Punisher
Get yourself a digital multimeter and check your battery voltage. Have you tried jump starting?
yes I've tried jumping it and after having it connected for 10 minutes it will only get the starter to start turning over. My mechanic said it isn't the starter or the solenoid or the alternator.
Old 07-23-2018, 06:37 PM
  #20  
BurtVette1975
Intermediate
 
BurtVette1975's Avatar
 
Member Since: Mar 2017
Location: Imperial MIssouri
Posts: 44
Received 5 Likes on 5 Posts
Default

Put your foot on the brake and put the car in neutral try to start it. If it starts it's the neutral safety switch.


Quick Reply: 1975 Vette Won't Start



All times are GMT -4. The time now is 04:24 AM.