help.... got unknown problem with my c4
Thread Starter
3rd Gear
Joined: Dec 2009
Posts: 3
Likes: 0
help.... got unknown problem with my c4
facts
new battery
new alternator
no burnt wiring
on highway during hot weather
cooling temp about sorry i said 132 degrees but meant 234 (normal range according to shop manual)
THE PROBLEM
Lost all electrical power and it returned when vehicle sat for about 20 minutes.
Just a thought...could the ecm cause this problem. it is 25 years old (HA HA)
new battery
new alternator
no burnt wiring
on highway during hot weather
cooling temp about sorry i said 132 degrees but meant 234 (normal range according to shop manual)
THE PROBLEM
Lost all electrical power and it returned when vehicle sat for about 20 minutes.
Just a thought...could the ecm cause this problem. it is 25 years old (HA HA)
Last edited by bctisme; Dec 13, 2009 at 11:01 PM.
Burning Brakes
Joined: Feb 2009
Posts: 785
Likes: 3
From: Richmond Virginia
facts
new battery
new alternator
no burnt wiring
on highway during hot weather
cooling temp about 132 degrees (normal range according to shop manual)
THE PROBLEM
Lost all electrical power and it returned when vehicle sat for about 20 minutes.
Just a thought...could the ecm cause this problem. it is 25 years old (HA HA)
new battery
new alternator
no burnt wiring
on highway during hot weather
cooling temp about 132 degrees (normal range according to shop manual)
THE PROBLEM
Lost all electrical power and it returned when vehicle sat for about 20 minutes.
Just a thought...could the ecm cause this problem. it is 25 years old (HA HA)
Le Mans Master
Joined: May 2004
Posts: 5,866
Likes: 60
From: Hellinois
Finalist 2020 C4 of the Year - Modified
We need MUCH better info, coolant temp of 132 is NOT normal and as stated above, is the car dead like it would be with no battery or is it just impossible to start?
Melting Slicks
Joined: May 2007
Posts: 2,075
Likes: 109
From: Longmont Co
Sounds like a battery connection problem. And 132 is way low for a warmed up C4.On the other hand, if the engine quit but you still had power to lights, etc., I was wondering about VATS. Does anyone know if a VATS problem could shut things down in mid cruise, rather than just prevent start up?
Thread Starter
3rd Gear
Joined: Dec 2009
Posts: 3
Likes: 0
help with my c4
my vette is an 84 and i have had it for two years. It always runs around 234 degrees. battery connection is perfect, Like new. I take care of it. when i say no power i mean no power. its running now. but i anticipate it happening again. Something has be be able to cut power. even the dash lights and instruments went black. I didn't check if the head lights went out because it happened in daylight, and since headlights are usually connted straight to the batter I am assuming they worked. This has to have something to do with the ignition.
Last edited by bctisme; Dec 13, 2009 at 11:00 PM.
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Instructor
Joined: Nov 2008
Posts: 199
Likes: 1
From: Asheboro NC
check the leads that plug into the alternator. something could have gotten corroded. As far as the temp. the previous owner of my corvette thought it was a good idea to gut the thermostat. It ran around 150* even on the hottest days. Changed it put in a 180* stat.
now it runs around 175* on the highway and in the 190 to 212* range in heavy traffic. you might want to consider changing that before you get a thermo shock condition in the winter time. (warping cylinder walls).
now it runs around 175* on the highway and in the 190 to 212* range in heavy traffic. you might want to consider changing that before you get a thermo shock condition in the winter time. (warping cylinder walls).
Team Owner
Joined: Dec 2007
Posts: 20,974
Likes: 261
I had the same problem one time, it was the positive terminal. I shut the car off from a drive, and tried to start a few days later, and nothing. I thought I drained the batt, but it was good, some how the terminal was not getting a good connection( it was tight) and did not start. took off, and put back on car has been fine for the last couple of years.
