Skip the auto shop - Our mechanics make house calls

Q: Failed smog check

asked by on

I failed my smog check. The technician pointed out a radiator leak and also a weird clicking noise coming from the exhaust.

A: Neither of these issues should cause you to...

Neither of these issues should cause you to fail a smog test. Smog test look at your cars emission output. The radiator might be leaking and need to be repaired but it has nothing to do with your emissions. The clicking noise form the exhaust is usually heard when the engine is first turned off after it has been driven and is pretty hot. It is the normal noise of metal cooling off slowly and again has nothing to do with your emissions. Consider giving YourMechanic a call to help diagnose your exhaust’s clicking noise as well as help you repair your coolant leak.

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

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: Suspected transmission. 2004 Ford Escape

Hello. I am sorry to hear of this issue with your 2004 Escape and I will try to help you with your question. First thing to do is ensure that you have the right amount of transmission fluid. If the...

Q: Shaking and vibrations

Hello. Shaking can be caused by many things. If the transmission mount was recently replaced then I would also take a look at the engine mounts to see if any of them also need to be replaced. Worn or damaged...

Q: Alternator/Battery issues

Inasmuch as you installed a new battery, this is probably a charging system related issue, but the charging system includes not just the alternator but all interconnecting wiring. So, you do have to consider the possibility of high resistance connections,...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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 Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.