Skip the auto shop - Our mechanics make house calls

Q: Car runs roughs and overheats

asked by on

My car runs rough and overheats. Adding coolant and water doesn't help.

Hi there. This is a problem that comes up often on this car. The most common problem is a leaking intake manifold gasket. This gasket fails and causes a vacuum leak which will make it run rough. Not replacing the failed intake manifold gasket will also allow coolant to enter the engine where it is burnt off causing the coolant level to go low and the engine to run hot. If the engine has been overheated then it may be a bad head gasket. A mechanic would do a block test and a cooling system pressure test to verify where the problem is.

Was this answer helpful?

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

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: Should I buy this car for $1700

Prior to buying any car, drive the car around and listen for any noises. Then do an inspection on the vehicle to make sure that it is safe to drive. All cars will need maintenance, but if the car was...

Q: Fuel pump will not kick on.

With fuel issues such as these, there are a few things to consider first. If the fuel pump and all of that has already been replaced, then it is likely the issue is not with the fuel pump itself. The...

Q: Overheating above 60MPH - 2002 Nissan Frontier

Hello there, many faults that will cause your 2002 Nissan Frontier to overheat above 60mph. When overheating is seen at speeds the most often faults are the radiator, low coolant level, air in the cooling system, or a faulty cooling...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...