Q: I was driving my truck and it made this "poof" sound as if something blew. I lost everything--brakes, power steering, and it stalled

asked by on

I was driving my truck and it made this "poof" sound as if something blew. I lost everything--brakes, power steering, and it stalled so I turned it off and started it back up it wasn't starting. I had to try a couple of times and give it gas to start back up and now it continues to shake and there is a little bit of a puttering sound coming from the exhaust and a smell. The exhaust was replaced 2 or 3 months ago. Please help.

My car has 190000 miles.
My car has an automatic transmission.

Hi, thanks for writing in. It is possible that the "poof" and exhaust smell (rotten gas smell?) both originated from the catalytic converter, and sulfur deposits in the converter. The engine may have backfired through the exhaust, setting off a small combustion event in the catalytic converter - the "poof" you noticed. If you now have a Check Engine light illuminated, which I suspect, have those codes read to guide diagnosis for the poor running you now experience. With the advanced mileage your vehicle has, I suspect your engine may have ’"jumped time", due to a worn timing chain or guides. I recommend having one of our certified automotive technicians from YourMechanic come to your home or office to inspect, diagnose, and repair the issue.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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
  1. Home
  2. Questions
  3. I was driving my truck and it made this "poof" sound as if something blew. I lost everything--brakes, power steering, and it stalled

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: smoking exhaust

Some smoke at start up can be normal, particularly white smoke from condensation. However, continuous smoking after the first few minutes signifies a problem with the engine that you should seek to have identified in an engine smoking diagnostic. If...

Q: Putting pitman arm onthe power steering gearbox

Hello there, the power steering gearbox and pitman arm are critical steering components on your 2001 GMC Yukon. The pitman arm must be torqued properly so it sits on the splines properly preventing it from loosening over time. A regular...

Q: Car stalling shortly after starting.

The fuel pressure on your vehicle may be leaking down after sitting. The fuel system requires the pressure be held up so at start up the injection system does not have to wait for the fuel pump to build up...

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...
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...
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.