Skip the auto shop - Our mechanics make house calls

Q: Car keeps overheating, the cap will not fit on the radiator

asked by on

Car keeps over heating , first the thermostat was bad so I replaced that first , ran good for a while now it over heats again, my cap leaks and I've tried 9 different ones now and can't seem to find the correct one the radiator is 2 years old at most but seems like a cheapo one some one threw in. I did compression test and came back good, my fan works and comes on when it gets warm , I let it run with cap off and the coolant level fluctuated and bubbled periodically so I think the water pump is ok , I can't seem to fix the issue could the cap be the root of the problem, I've tried all auto stores around and none work

My car has 150375 miles.
My car has a manual transmission.

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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

Get a quote

What others are asking

Q: Needle goes past hot

The heater not working in some cases may be related to the overheating problem you are also having. This may be due to a faulty heater blower motor or potentially a bad heater core. As you may know, the heater...

Q: What does the Maintenance Minder indicator mean?

Your car is equipped with a pretty advanced system designed to help you remember when most of your maintenance services are due. These reminders are shown in the Maintenance Minder on the dash of your car. The Maintenance...

Q: My car shifts gears just fine but it hardly wants to take off and the rpms go up very high but hardly accelerates. 1994 Honda Civic

Hello - I believe you have a severely slipping clutch. Either the clutch is worn out, or the clutch disc is contaminated with engine/transmission oil, and is slipping for that reason. If the clutch has not been replaced with your...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...