Skip the auto shop - Our mechanics make house calls

Q: Car idles rough when stopped at light or stop sign (not all the time). Car overheated very briefly.

asked by on

2001 nissan altima overheated briefly last week (as soon as temp went high, check engine light came on for coolant ), vehicle was stopped. Radiator was checked and it was pretty empty. After radiator cooled down water was added and temperature gauge stayed normal. Radiator rusty so radiator flush done. Coolant still seems to have a small leak but not sure where. Due to high mileage and not sure when spark plugs/distributor cap/rotor and wires were changed those are being done this week. Check engine light just came on it was P303 for cylinder 3 misfire. Now with doing some research online it looks like the Nissan Altimas are known to need to have intact manifold gaskets replaced. How can you tell if it is the intact manifold gasket ? Also they say it is best to change both gaskets, is that true ? The car is not giving off any white smoke and the engine temperature is staying right in the middle range, it hasn't overheated again.

My car has 205000 miles.
My car has an automatic transmission.

Its possible that a bad gasket could be allowing the coolant to cause your misfire. There are many places that coolant can leak and many causes for a misfire like yours. The symptoms you describe may not be related to each other. I would have a certified technician, like one from YourMechanic, come to the site of the car to diagnose the rough idling issue as well as the overheating problem in order to prevent further damage from occurring.

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
  • Home
  • Questions
  • Car idles rough when stopped at light or stop sign (not all the time). Car overheated very briefly.

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: Had 3 accidents within 3 months aparts....took to acura dealer they said rear brake (4mm), replace rear struts/front struts.

The brake failure may very well have been from the accidents. I would be difficult to tell without seeing the extent of the damage. I would recommend having the vehicle inspected by a qualified professional to determine if the brake...

Q: My 1998 Isuzu Rodeo LS gets hot, then cools, then gets hot and stays hot

This can be caused by a number of things, such as low coolant levels, a faulty thermostat, or a failing coolant fan switch. As you may know, the coolant fan switch helps to maintain the proper coolant temperature by turning...

Q: Exhaust manifold leak gaskets

The heat generated by this engine at the higher power levels required to haul these rigs around causes much more expansion and movement of the exhaust manifold relative to the block. The manifold expands, and either cracks, or warps, and...

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 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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...