Skip the auto shop - Our mechanics make house calls

Q: Sounds like vacuum leak

asked by on

Truck dies when I try to engage gear. Restart blows black. Replaced crank shaft coil and IAC will idle fine but dies when I try to shift into gear. Sounds like major vacuum leak. Not showing any codes, no engine light on. Never been a problem before now
My car has an automatic transmission.

When you suspect a vacuum leak on the engine it may be a cracked hose or a gasket leak. The best way to find it is to use a hose to your ear and move around the engine intake and hoses to locate the leak. The hose for the brake booster may be cracked or coming loose from intake port.

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: Cylinder doesn't have any compression 2020 Dodge RAM 1500

Hi - the loss of power, with low compression on one cylinder may be a blown headgasket or burned valve. Worn piston rings are more commonly an issue across all cylinders. I would recommend a power loss inspection performed by...

Q: 4 wheel drive not working properly!

Hi there. Obviously the best course of action is to have a professional mobile mechanic come to your location and complete a four wheel drive inspection; however, at first glance, you might want to check the wiring harness that supplies...

Q: steering wont lock and ignition wont turn

Hi there: There are a few things that could be broken on your Dodge Durango, ranging from a damaged component inside the steering column, to an ignition lock cylinder that also has damaged or stuck parts that will need to...

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...
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...
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.