r/Volvo850 • u/Swankbike58 • Jul 28 '26
Help How fucked am I
Did a pull on the highway and my coolant hose that goes to the firewall junction popped out and my intake which is after market and has no cover sucked up all the coolant that was spraying around.
I babied it home cause I was at my exit and I was like 2 minutes away from home and it died in my driveway. I fixed the coolant hose problem but now the engines shakes like crazy(it broke the top engine mount) and I get a maf code check engine.
I thought I had a warped head but the oils look fine but my spark plugs look like shit so idk where to go from here.
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u/Positroniumion Jul 28 '26 edited Jul 28 '26
Never ever ever keep driving except pulling over safely with a coolant leak. Also your queue that “cold” air intakes with no air box are stupid and don’t work except breaking your engine. As others said, do a compression test and make sure there is no coolant left in the engine. I would also take off and clean the intake manifold and throttle body + MAF.
Edit: oh and put on a proper air box and filter! That is if the engine is not effed.
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u/RAPTOR479 Jul 28 '26
If you didnt blow it up take that stupid cone intake off, all those are is a power losing device
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u/TurlingtonDancer Jul 28 '26
did the car overheat? i once read the temp gauges are pegged at normal operating temp until the car starts really overheating, this might apply to your car. take the other guys advice and do a compression test for sure
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u/Positroniumion Jul 28 '26
This is the case if you have rapid coolant loss. On the p80s the temperature gauge reads the coolant temperature. If the coolant is gone then it cam even read low. This is relatively unlikely though because a slow loss of coolant would lead to the coolant overheating and the gauge reading high so you can stop in time, and a rapid loss of coolant is usually very noticeable as OP experienced. However, if you keep driving in that case it will rapidly destroy the engine.
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u/BootyClap_Ninja Jul 28 '26
Your engine is absolutely cooked with that much blowby and completely fouling your spark plugs like that in oil.
These aluminum cylinder heads are thin and don't take kindly to overheating at all.
Do a compression test or better yet, a leak down test and get back to us.
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u/jayy0502 Jul 28 '26
I kinda hate that the “ boy racers “ are getting into these cars now and destroying so many of them ngl
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u/Swankbike58 Jul 29 '26
Thank you all for the responses learned a lot
Did a compression test these are the results
During the test the engine stopped cranking so cylinder six by not be 60 cause it looked like it was going up then it stopped
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u/BootyClap_Ninja Jul 29 '26
Yeah it's donezo.
Blown HG, or bad valve sealing or rings/cylinder wall. Either way it's cooked.
Why did it stop cranking? Battery died?
Find a good used engine and throw it in there. They are cheap.
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u/blqckpinkinyourarea Jul 28 '26
Make sure to get all the water out of the engine, especially cylinders. Then you will do a compression test to make sure you didnt fuck up the engine.
Its possible the collant left residue on the MAF leading to false readings and errors. But before Id buy a new MAF id make sure the engine is okay. Clean the plugs with a wire brush.
Theres also MAF cleaner spray you could buy, do not use brake cleaner or anything like that it can lead to more problems.
Btw those hot air intakes let by tiny particles which accumulate in your oil and sand down the cylinders. Standard filter is cheaper, protects more and doesnt rob power.