Skip the auto shop - Our mechanics make house calls

Q: 01 Chevy Impala v6 3.8L (3800 Series 2). Upper Intake Manifold exploded

asked by on

I went to the gas station the other day for gas and left my car running while I went inside to pay for $10 in gas. When I went to go drive off I heard a loud bang then smoke came out from under the hood. My Upper Intake Manifold exploded and i'm trying to fine out if it could have caused any other damage to my engine or my Lower Intake Manifold or if I only need to get a new Upper Intake Manifold and gasket. My car has been running hot too, I know I have been loosing antifreeze which I do believe its coming from my water pump. When I got in it to drive off I looked at my temp gauge and it wasn't running hot. Not sure if that could of caused my Upper Intake Manifold to explode like it did or if it could have been another reason it exploded. I really appreciate any help given. My car has an automatic transmission.

Before this question could be answered you will need a mechanic like one from YourMechanic to do a complete assessment of the damages to see if the upper manifold is the only thing that got damaged and why it exploded. You may have a fuel vapor leak that built up when you got fuel from a leak in the fuel tank vapor recovery system like a leaking purge valve. The may have let excess fumes into the intake that upon opening the throttle flooded engine with straight fumes that exploded. Have the system tested along with getting the cooling system tested and repaired.

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
  • 01 Chevy Impala v6 3.8L (3800 Series 2). Upper Intake Manifold exploded

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: Timing belt failure - 2006 Chrysler Pacifica

Hi there - no, it would have been impossible for a mechanic to know a timing belt failure was imminent. Given your mileage, the timing belt has been changed at least once already. When that was done, the service center...

Q: Marker lights not working

Hey there. It is possible that a fuse blew when the new light was installed with the vehicle in the on position. I would recommend checking the marker light fuse to determine if it has blown. It is always best...

Q: Remote works only for driver door

This is likely related to the remote door lock switches inside the doors of the vehicle. I would suggest testing those for connectivity if they do not operate inside the vehicle manually. You can purchase a spare remote (assuming it...

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 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.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.