Q: Loud metallic clunk and stops cranking when trying to start after removing and reinstalling upper intake manifold,

asked by on

I removed the upper intake manifold and installed a new fuel pressure regulator. I used a new gasket set including an upper intake manifold gasket, a gasket for the fuel spider/center of the intake manifold, and a gasket for the throttle body assembly. When I put everything back together and tried to start it, it started up pretty quickly then died in about two seconds. When I tried to crank on it again I heard/felt a loud metallic clunk and the engine stopped cranking. I tried this two more times with the same result- the engine cranking for maybe one second then the clunk and it stops cranking on its own.

My car has 150000 miles.
My car has an automatic transmission.

Hi there. Check the fuel injectors and make sure that they are hooked up properly. A leaking fuel injector will cause fuel to flood the cylinder and hydro lock the piston making the engine stop cranking. Also, check for anything that could be missing. It is possible that during the removal and installation process of the intake may have had a nut or bolt go into a runner on the cylinder heads. When the intake valve opens, the object will enter the engine causing the engine to have a clunk sound as well. I recommend seeking out a professional, such as one from Your Mechanic, to help you if you are unable to locate the clunking source on your engine.

Was this answer helpful?
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. Loud metallic clunk and stops cranking when trying to start after removing and reinstalling upper intake manifold,

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: Whistling noise over 40mph, car downshifts hard - 1996 Chevrolet K2500 Suburban

The transmission on these vehicles have many different possible problems and it sounds like you have an overrunning clutch bearing that is bad, which is causing it to make noise after 40mph. The problem downshifting may also be due to...

Q: I have installed new shocks in my Baleno but it still seems uncomfortable and my engine is so noisy

The engine could be noisy for many reasons, but the most common noise is when the engine mounts are worn out or broken. This causes the engine to vibrate the cradle in the engine compartment, making a noise. As...

Q: Q: Car Won't Start

Hello. From what you describe it would appear that your vehicle is having some sort of malfunction with the security system. It may be possible that the security system is enabled and preventing the vehicle from starting. This may or...

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 Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...