In no particular order:

- air bubble trapped in the heat core
- heat core is clogged
- HVAC air distributor malfunctions (common at this age)

I did this job 3 months ago when it was too cold to ignore. The housing came with therm' and new temp sensor, it was no good. The bad new sensor ran the cooling fans and prevented the engine from reaching op' temps around 185, the fan kept the temp at 155F tops. Reinstalled the old original sensor a...

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I used one of the RELD test kits and the fluid stayed as blue as BB King. N I C E. After the engine was about 208 or so I think, I revved it and coolant came through and even partially melted that test tube. So naturally the color changed, but up till I did that it was always a steady blue. Tried to...

Heater core does not retain coolant; it circulates. There will be some in the pipes and passage - catch it with a towel at disconnect. Remove the heat core hoses on the other side of the firewall, blow some air into one tube and collect coolant from another. Then the core will be almost bone dry. I...

One recent Saturday, my friend stopped by my home and we detailed both cars for a local Cars & Coffee meet the following day. His is the 240DL with a half a million miles on the odometer, while mine is the V90 with 40K miles. The both have 4 cylinder engines, with the 240's pumping out about 90 ...

Update 4 Recently I learned either my borescope is useless, or I can’t see well (or interpret what I see?). I went ahead and pulled the cylinder head, because why not? I have looked, photographed, videoed and looked again, and I don’t see a crack anywhere. But the head gasket was definitely blown. I...

I just got one the other day! Didn’t know how rare it was til I saw this thread! Thank you 2001 v70t manual in mistral green Pearl

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3 teeth off is a game over.

For sale is our 92' Volvo 240 GL sedan, auto, white with blue interior. The odometer shows 183k, but it has more on it due to a previously faulty odometer gear. How much more I do not know. It has some options that you don't see often in a 240, such as a factory sunroof, heated power mirrors and hea...