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found a lot of coolant in the intake manifold

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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

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YOUR RESEARCHfound a lot of coolant in the intake manifold

Leading reported evidence

Replace @80k

Performed · outcome unconfirmed

No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
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Performed · outcome unconfirmed · Original poster
water pump replaced @80k.
Original post Read captured discussion
found a lot of coolant in the intake manifold

Frequently discussed work

Check fluids

No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
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Suggestion
Check your fluids for contamination and go from there.
Original post Read captured discussion
found a lot of coolant in the intake manifold

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Leading evidence: 'Replace @80k' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check fluids' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Check fluids

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Suggestion
Check your fluids for contamination and go from there.
Original post Read captured discussion
found a lot of coolant in the intake manifold

Frequently discussed actions (2)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Check fluids

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

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Suggestion
Check your fluids for contamination and go from there.
Original post Read captured discussion
found a lot of coolant in the intake manifold

Replace @80k

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster
water pump replaced @80k.
Original post Read captured discussion
found a lot of coolant in the intake manifold

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5 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

Rennlist: 1 discussions

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Generation: 20261026T091943Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

99 996 C2, 105k miles. water pump replaced @80k. I recently found a ton of coolant in the intake manifold, the coolant resivoir is pretty much empty now. Let me start from the begining...My car threw misfire codes cel, p0300,p0302,p0306. (I let the car sit for a month) upon trying to start it up, I assesed it had a bad starter-as the battery went dead (recharged it, tapped on the starter) I eventually got the car to start. I ran but extremely rough, tons of smoke coming out of both tail pipes. Ok, suspected bad AOS. while changing the starter, I found a good little puddle of coolant in one of the intake plenums. I think its a cracked head/head gasket. Is it possible it could be AOS???? ****I am not a mechanic.***** just a motivated DIY'er. Any help would be greatly appreciated

POST 2Original post

Sounds like a cracked head at best. Did the engine run hot when the waterpump went bad? If you can pull the sparkplugs & inspect them to see which cylinder is having problems & then turn over engine with starter to clear cylinders of coolant etc to see how much is in the cylinders & which cylinders.

POST 3Original post

possibly a bad AOS... coolant runs through it. I would check if you have intermix, drain the oil and asses.

POST 4Original post

I would drain the oil and take a look. I am not sure a bad AOS would cause coolant to enter one of the plenums. What is the condition of the coolant in the tank? Check your fluids for contamination and go from there. Don't panic. Everyone immediately jumps to the worst-case scenario.

POST 5Original post

Quotes source post: 9599148

Yep. Draining the asses always helps me to think clearly as well.

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