Stupid mistake: Have I now got to remove the inlet manifold?

J

jonblue

• Sep 9, 2025

• #1

I have broken the MAP sensor and let the broken bit fall into the inlet manifold. I am no mechanic but I am guessing that if I do nothing, next time I start the car, that bit of plastic will get sucked in and wreck valves and/or cylinder. Am I right? Have I now got to take the manifold off? So annoyed...

 

RSRowe

Paid Member

• Sep 9, 2025

• #2

Well you either start it up and hope it passes through without damaging anything, or take it apart to retrieve the errand piece

 

J

jonblue

• Sep 9, 2025

• #3

Yes, one thing or the other. If it was metal, the choice would be clear. But plastic...I just don't know.

 

VeiRoNv2

Paid Member

• Sep 9, 2025

• #4

yeah done that before myself,easy to take the manifold out,(just the top part) wouldn't certainly risk it for the sake of 10 minutes it takes to do it

 

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Reactions: RSRowe

J

jonblue

• Sep 9, 2025

• #5

10 mins...might take me 20, but that's still a quicker job than I thought. Did you replace gaskets?

 

R20BTG

Paid Member

• Sep 9, 2025

• #6

Yeah it’s not a difficult job, whip it off and retrieve it

 

VeiRoNv2

Paid Member

• Sep 9, 2025

• #7

jonblue said:

10 mins...might take me 20, but that's still a quicker job than I thought. Did you replace gaskets?

Click to expand...

no shouldn't need to,just inspect it (you'll only see the top one) visually and make sure there is no breaks or crumbling apart.

 

J

jonblue

• Sep 11, 2025

• #8

Thanks for all your help. Job done. Part retrieved. Went like a dream. Until i started it. Now only firing on three cylinders Perhaps dodgy connection on one of the coils.

 

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Reactions: Sean197

VeiRoNv2

Paid Member

• Sep 11, 2025

• #9

Was it fine before? If so probably left something unplugged.