Small puddle under car
Thread Starter
Heel & Toe
Joined: Nov 2016
Posts: 22
Likes: 4
Small puddle under car
2017 Z51 M7 trans. 1500 miles.
Yesterday night I pulled the car out of the garage into the driveway. I noticed a small 1/2 dollar size puddle under the left front corner of the car in the garage. It was reddish in color. Could it be the power steering rack or is it possible radiator fluid.? It was night, so i did not get a chance to craw under the car or look under the hood.
Yesterday night I pulled the car out of the garage into the driveway. I noticed a small 1/2 dollar size puddle under the left front corner of the car in the garage. It was reddish in color. Could it be the power steering rack or is it possible radiator fluid.? It was night, so i did not get a chance to craw under the car or look under the hood.
Team Owner
Joined: Sep 2001
Posts: 23,283
Likes: 906
From: Lake Elsinore, CA
Sounds like coolant. I started finding the same small puddles under the left front last year on my '14 and discovered the radiator plastic end cap was separating from the core. It was replaced under warranty.
Thread Starter
Heel & Toe
Joined: Nov 2016
Posts: 22
Likes: 4
Thanks for your input!!
Le Mans Master
Joined: Sep 2003
Posts: 8,847
Likes: 795
From: Longview Texas
Guess I better start checking my 2014 a little closer.... my warranty expires next month (April)
Safety Car
Joined: Dec 2002
Posts: 3,655
Likes: 24
From: Charleston SC
Not sure on the C7 but in the last three years (two in the past 6 months) I am 0 for three with corvette radiators.
the C5 was catastrophic failure were the whole neck broke off at the upper radiator hose driving to the dealer
the 07 took a dive 3 weeks before Ibsold it to get the C7, plastic tank cracked.
My wife's 05 was last month small crack leaving little puddles just as you described.
so I would say there is at least a chance the your GM radiator might have a cracked tank.
the C5 was catastrophic failure were the whole neck broke off at the upper radiator hose driving to the dealer
the 07 took a dive 3 weeks before Ibsold it to get the C7, plastic tank cracked.
My wife's 05 was last month small crack leaving little puddles just as you described.
so I would say there is at least a chance the your GM radiator might have a cracked tank.
Melting Slicks
Joined: Jan 2001
Posts: 2,996
Likes: 304
From: MOORESVILLE NC
Here is a pic of my 2015 water pump leak at 15,000 miles. Notice the location of the coolant.
If the radiator tank is leaking the leak would show up in front of the cross-member. Go to the dealer like I did so they can find the problem and fix it.
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Thread Starter
Heel & Toe
Joined: Nov 2016
Posts: 22
Likes: 4
Update on Puddle under Left front
Went to the dealer this last Thursday.
They pressurized the cooling system. When you look down at the left side of the radiator there is 2 aluminium pipes that connect to the radiator.
The front one had a small drip coming from the mechanical connection. The tech wants to replace the complete tube. He said it is faulty. Up to 2-3 weeks to get new parts.
Looking at it, being the car has 1500 miles on it, I would say it was leaking from day one. I am not sure what type of mechanical connection it is going to the radiator, O-ring possible, compression ??? Parts on order, will bring car back when parts arrive.
He was telling me that this hose goes to the top of the engine by the thermostat. Is is to help eliminate air in the system during high RPM times.
Yesterday night I pulled the car out of the garage into the driveway. I noticed a small 1/2 dollar size puddle under the left front corner of the car in the garage. It was reddish in color. Could it be the power steering rack or is it possible radiator fluid.? It was night, so i did not get a chance to craw under the car or look under the hood.[/QUOTE]
They pressurized the cooling system. When you look down at the left side of the radiator there is 2 aluminium pipes that connect to the radiator.
The front one had a small drip coming from the mechanical connection. The tech wants to replace the complete tube. He said it is faulty. Up to 2-3 weeks to get new parts.
Looking at it, being the car has 1500 miles on it, I would say it was leaking from day one. I am not sure what type of mechanical connection it is going to the radiator, O-ring possible, compression ??? Parts on order, will bring car back when parts arrive.
He was telling me that this hose goes to the top of the engine by the thermostat. Is is to help eliminate air in the system during high RPM times.
Yesterday night I pulled the car out of the garage into the driveway. I noticed a small 1/2 dollar size puddle under the left front corner of the car in the garage. It was reddish in color. Could it be the power steering rack or is it possible radiator fluid.? It was night, so i did not get a chance to craw under the car or look under the hood.[/QUOTE]
Cruising
Joined: Jan 2014
Posts: 11
Likes: 0
coolant leak under right front.no evidence of leak or coolant on vehicle.after long ride sounds like coolant hitting manifold.no stains no keaks no leaks when pressure tested.sometimes 3 quarter sized drips on garage floor.other times just 1 on the right front
Drifting
Joined: Sep 2009
Posts: 1,440
Likes: 314
From: PA
I'm actually sitting in the dealership waiting room right now while they change my oil and look into a small drop of coolant I found on the garage floor after backing the car out from winter storage. Car is a 2014 with Z51 option. Hope it's not the radiator, but my warranty expires in June so whatever it is I need it fixed ASAP. Anyone know how big of a job removing and replacing a C7 rad is? Hoping it comes out from the bottom?
Drifting
Joined: May 2012
Posts: 1,615
Likes: 182
From: South Dennis MA
I'm actually sitting in the dealership waiting room right now while they change my oil and look into a small drop of coolant I found on the garage floor after backing the car out from winter storage. Car is a 2014 with Z51 option. Hope it's not the radiator, but my warranty expires in June so whatever it is I need it fixed ASAP. Anyone know how big of a job removing and replacing a C7 rad is? Hoping it comes out from the bottom?
Drifting
Joined: Sep 2009
Posts: 1,440
Likes: 314
From: PA
Well, they said they could find no evidence of a leak anywhere. I made sure they documented in writing that I complained of seeing a leak, so if it ever materializes into anything I should be able to get it taken care of. I bought the car certified pre-owned and still have bumper to bumper warranty til sometime in June. Also have as many free oil changes as I want until this December. Brought the car home after an hour drive and have not seen any drips.
Melting Slicks
Joined: Jan 2001
Posts: 2,996
Likes: 304
From: MOORESVILLE NC
