8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHMy HOT new '99 C2 Coupe
Leading reported evidence
Check coolant and it is above max line in reservoir
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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Discussions that performed work without a confirmed outcome
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Performed · outcome unconfirmed · Original poster
Checked coolant and it is above Max line in reservoir.
Leading evidence: 'Check coolant and it is above max line in reservoir' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check coolant - you confirmed' (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.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
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Suggestion
I know you said you checked the coolant - you confirmed that the liquid is actually there and not just a line on the old tank?
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
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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.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
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0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
If there's not actually a problem with the cooling system, check for garbage packed around the radiators...
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
8 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261026T091943Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Driving home on a beautiful day, windows down, sunroof open, when the temp jumps to about 210 and flashes red light. Coast into driveway, tow it into garage and contact PO. He states that it has always gotten hot and bitched (red light) but never over heated. Ha! At least he was honest. Thoughts on what it is? Obviously it's not a head gasket so does that mean cracked head? I'm assuming a stuck thermostat would be way to simple.
Checked coolant and it is above Max line in reservoir.
Need more info....the light should not go on at 210, or I don't think it should.
Wait for it to cool....remove the expansion tank cap, inspect coolant, is it pink or a milkshake? Look in oil add tube....any milkshake in there?
I know you said you checked the coolant - you confirmed that the liquid is actually there and not just a line on the old tank? I'm not accusing you of being dumb - but it's easy to misread the older tanks that are funky and no longer transparent.
Check the position of the ambient air temperature sensor in the engine compartment.
Finally, get those radiators cleaned out (the space between the radiators and the AC heat exchanger). If there's not actually a problem with the cooling system, check for garbage packed around the radiators...
Four functions of the coolant warning light:
1. Engine coolant level too low -- light flashes slowly (0.5 Hz)
2. Engine compartment temperature too high -- light flashes slowly (0.5 Hz) (engine compartment blower might be faulty)
3. Engine coolant temperature too high -- light is lit; pointer on the right
4. Temperature sensor at water outlet faulty -- light flashes rapidly (1 Hz) ; pointer on the right
Note: The temperature warning in point three is indicated if the conditions "engine coolant temperature too high" and "engine coolant level too low" are present simultaneously
(1Hz = 1 flash per second. 0.5Hz = 2 seconds per flash)
Ok, I've stopped hyperventilating.
Coolant is pink and confirmed above max level. Oil is at mid level and and a decent shade of brown (changing it this weekend.) The blinking seemed to be 1 Hz. Haven't been able to find the ambient temp sensor yet but still researching.
Edit: Almost no debris in front of radiators. Obviously has been cleaned out recently.
Winner winner chicken dinner! Ambient sensor was hanging off to the side against the block. Any tips for getting that frickin thing grommet back in its slot? Read the part about not disconnecting it, that seems like wise advice.
Edit: figured it out. You have to slide it in from the side. Back business!! Thanks to 5Chn3LL and everyone for helping troubleshoot and solve this. Rennlist rocks!!!
This is a source reference. Confirm exact model applicability in the original material.
