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Sludge In intake behind throttle body

5 posts in this topic

Posted · Report post

Gday all.

last night when I had the throttle body off so I could replace the left cam position sensor I noticed that there was a lot of black sludge in there. I should have taken a picture but I was in a hurry and forgot. Seemed mostly on the floor of the pipe and looked like crusty dried oil. The throttle body itself was pretty clean by comparison (save for a little bit of a rusty watermark on the lower edge of the butterfly plate).

any thoughts? It runs and idles nicely but as the car is new to me I can't say whether or not there is a loss of power but it doesn't feel like anything is wrong...

id run some upper engine cleaner through it but there is just something I find frightening about spraying any liquids into my intake even though I'd have no hesitation to do it on my Jimny, which is basically unkillable.

cheers :)

 

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Posted · Report post

Gday all.

last night when I had the throttle body off so I could replace the left cam position sensor I noticed that there was a lot of black sludge in there. I should have taken a picture but I was in a hurry and forgot. Seemed mostly on the floor of the pipe and looked like crusty dried oil. The throttle body itself was pretty clean by comparison (save for a little bit of a rusty watermark on the lower edge of the butterfly plate).

any thoughts? It runs and idles nicely but as the car is new to me I can't say whether or not there is a loss of power but it doesn't feel like anything is wrong...

id run some upper engine cleaner through it but there is just something I find frightening about spraying any liquids into my intake even though I'd have no hesitation to do it on my Jimny, which is basically unkillable.

cheers :)

 

you might need a new cam sensor o ring

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Posted · Report post

For sludge in the intake plenum?

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Posted · Report post

It's not uncommon to get dry black carbon buildup around the throttle body - if it's worse than that you would suspect blow by gases coming into the plenum via the PCV - cam housing pressure test and a compression test would the next course of action

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Posted · Report post

thanks for that. ill put that project on the backburner for a little bit and see how she goes. There doesnt seem to be any performance issues at present and im haemorrhaging money at the moment. So far so good on that cam sensor but its too early to tell. Avoiding spending too much more money on her until i know shes not going to keep throwing temper tantrums on the roadside :D

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