Heating up / Overheating under load

[Jason]

Let us know what you find.

Jason

[v8volvo]

Mine heats up under load too. Is this a turbodiesel or NA? Could be headgasket. How is your heater output?

I agree clogged rad is likely cause. If you are still in Seattle, stop by and we can take a look at it together... I am around. Shoot me a PM if you want a phone number.

[Josh]

Sadly I'm home now. Its a turbodiesel.. I'm really hoping its not the headgasket ... I don't have the money to do a radiator flush right now but it seems to be running just fine as long as I don't go up any long hills . I'll be getting a little money sometime next weekend so we'll see how that goes.

[Slobodan]

Just putting it out there, Could be faulty injector(s).

[Josh]

How might I get that tested Slobodan? I recently had the radiator flushed and it didn't make any difference.. Need to figure this out >_<

[Jason]

Did you replace the T-stat? Is the system holding pressure when the engine is running?

You would need to take the injectors out and get them pop tested and or rebuilt. Obviously if your engine isn't knocking like he was saying they aren't too bad, but it could be making it worse.

Jason

[Josh]

I dunno... the motor is pretty loud... and seems to lose power after the car warms up to operating temps and then starts to heat up under medium-high load. Its starting to sound like that might be the issue. I just wonder where I can take it to have it tested. IPD is located here in portland... they're volvo specialists but since its a diesel, I kinda expect them to have never seen one before.

Also, yes its holding pressure and not eating coolant... haven't checked the thermostat though, I'll replace that sometime soon. I'm moving to Eugene next week so I'm a bit busy

[Jason]

Are you a member of the D24 mailing list? You may want to get in contact with Tom Bryant. He can pop test and or rebuild them, and from what I understand he is very reasonable. That is if you cant find anyone close by, he is in Maine. Loosing power when warm is kinda backwards, usually they run better when warm!

Jason

[m-reg]

I think I got clogged exhaust too, on cool mornings it goes like I guess it should then in hot afternoon real slow like you need longer leg to push pedal more, temp gauge stays smack in middle though. First thought needed bigger intercooler or maybe cool air pipr to injector pump, sometimes gets a hissing noise when should be boosting so I think need to do exhaust first. never seen my boost pressure light comeon either, in old days used it as gear change light (when light came on time to change up lol)

[MRDART]

Check your radiator hoses for excessive pressure, because sometimes a blown headgasket doesn´t eat coolant it just pushes compression into it making an air pocket in the system and causing a no flow situation. I´ve seen it on two of my engines....

If you buy a new thermostat there should be a little hole in it to bypass some fluid even when it´s closed, I recomend drilling one more hole on the opposite side(makes it esier to bleed out any air in the system)

Then you might want to replace the radiator, I don´t know how it is in the US but here in sweden they replace cellpackage and reuse your old sides. so you should not have to search to hard for a new radiator.

These engines produce a lot of heat so the standard gasser radiator is not a good choise...