Q: My 2002 Pontiac sunfire is leaking coolant. The radiator, water pump, and head gasket has all been replaced. What’s the problem?

asked by on November 29, 2017

I’ve replaced the head gasket, the radiator, and water pump and my car is still leaking coolant. It’s pooling over in front of the passenger side of the car. My hoses up top are fine and aren’t loose. I filled my coolant tank up last night and woke up to as somewhat dried up puddle. It’s definitely coolant.

My car has 145000 miles.
My car's transmission is unknown to me.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

How do I customize the Remote Lock feedback?
When the remote keyless entry (RKE) transmitter is used to lock the vehicle, the vehicle can confirm the locking by flashing the lights and beeping the horn. You can choose which feedback you receive when locking the car via the...
Car won't move
Hello there. Lack of fluid is the number one cause of transmission failure. If the transmission went without fluid for too long, it could be severely damaged. The only way to tell if a transmission is severely damaged without disassembling...
Shield rattling on a 2012 VW Passat
No, it's not necessary. It's a shield that keeps your oil pan from getting hot (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-heat-shield). Those Volkswagens are so squirrely, if you want to talk about over-engineered German nonsense. Their oil pans are two-part oil pans on most of...
Is there anything that I can use to temporarily grease my CV boot for a couple days until I can buy more grease?
Hello. I am sorry to hear of your situation with the CV joint and boot on your 1991 Metro and will try to help you now. Typically, once the boot rips, the grease inside will actually stay there for a...
Nissan Bluebird Sylphy Parts
To answer this question, you will need to look up the part numbers of both to see if they match. Look up the part numbers, and then if possible, have an expert conduct a side-by-side comparison of the parts to...
Vehicle turns off at any rpm, at idle or highway speeds, without stumbling or warning.
This kind of a stalling issue can be caused by a variety of problems. They are typically caused by ignition faults, wiring faults, and fuel issues. Although you do not have a Check Engine Light on, you should still scan...
Charging system warning light.
This may be a sign of a weak battery, a failing voltage regulator or failing alternator. As you may know, the alternator is responsible for charging the battery while the engine runs by generating amperage and recharging the battery while...
73 f100 360 FE lurches then stalls when put in gear
Hi there. Typically when you put the truck in gear and it stalls, it's caused by a fuel delivery problem; usually a defective fuel pump, dirty fuel filters or a fuel filter installed backwards in some instances. It could also...
My front passenger door won't open from the inside
Hi Andrew. Thanks for contacting us today. It's more than likely that the inner door latch mechanism has either broken or has come loose. To resolve this problem, you should probably have a professional mechanic complete a door will not...

Related articles

The Best Used Cars to Buy for Occasional Drivers
Not Not everyone relies on their car on a daily basis. Maybe you aren’t the type that deals with a daily commute, and running from here to there constantly. If that’s the case, you may be looking for a car...
Understanding the Pontiac Oil-Life Monitor and Service Indicator Lights
Car symbols, or dashboard lights, are a car service reminder. The Pontiac Oil Life Monitor (OLM) indicates when and what service your car needs.
How to Buy a Classic Pontiac
Whether you want to buy a classic Pontiac for yourself or as a gift, here are some tips on buying one for a great value.