Login Register

Running hot and burning allot of oil

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

Post Reply
User avatar
hanzbe420
Posts: 535
Joined: 10 December 2010
Year and Model: 2006 s60 2.5T
Location: CT,USA
Has thanked: 4 times
Been thanked: 1 time

Running hot and burning allot of oil

Post by hanzbe420 »

Hey guys my car has been running really hot and burning allot of oil, but not leaking on the ground. I think it is leaking a bit from the rear exhaust in the back of the engine. But it's so hot. Everything under the hood is to hot to touch pretty much and the fan comes on allot. That leak must be minor or it must be something else but car runs so hot. And Burns allot of oil.

User avatar
850 LPT
Posts: 1963
Joined: 27 May 2011
Year and Model: 96' 850
Location: CT
Has thanked: 332 times
Been thanked: 243 times

Post by 850 LPT »

Well, lets look at some basics here. How much oil (in quarts) is it using and how old is the engine, or how many miles does it have on it?

In regards to running hot, is this your perception or does the temp gauge actually tell you this? If it does, then you need to start diagnosing the cooling system. I wonder if your radiator is plugging up or your water pump is wearing out?
98' S70, base, 5-speed manual, pewter/ tan, 145k miles
99' S70, base, 5-speed manual, nautic blue/ tan, 225k miles, currently inop
06' V70, auto, willow green/ charcoal, 147k miles
79' Ford Capri S, Euro Spec 2.8 V6, T9 5-speed manual, owned since 1986
58' Porsche Diesel Junior
13' Honda Odyssey :oops:
84' Mercedes 300 D, gold/ tan, 420k miles (retirement project :D )

tryingbe
Posts: 1893
Joined: 18 June 2009
Year and Model: None
Location: Mesa, AZ, USA
Has thanked: 1 time
Been thanked: 26 times

Post by tryingbe »

hanzbe420 wrote: 08 Jun 2017, 10:29But it's so hot. Everything under the hood is to hot to touch pretty much
Everything SHOULD be hot to touch. Then engine operating temperature is around 190-221F!!!

hanzbe420 wrote: 08 Jun 2017, 10:29 And Burns allot of oil.
PCV system ever been serviced? If not, I start there.
85 GLH, 367 whp
00 Insight, 72 mpg

User avatar
hanzbe420
Posts: 535
Joined: 10 December 2010
Year and Model: 2006 s60 2.5T
Location: CT,USA
Has thanked: 4 times
Been thanked: 1 time

Post by hanzbe420 »

Yes it sounds funny but it seems way hotter then normal. Or I'm going crazy. When I just riding it comes in from the vent hot as hell. I did the pcv few years ago. It's still working good I checked it. Could it be the the thermostat i need a cooler one. All I know it's burning allot of oil and it's not leaking on the ground. I didn't take a temp reading. I'll see if I can get some readings. I took the cap off the coolant and revved it and it was flowing both radiator hoses are hot. I also noticed the while radiator is holding by one clamp and just laying on the other side wall. What can I look for besides pcv. That's the first thing I serviced on the car and checked. The only code I have is front knock sensor and it's been there for years. It only usually goes off when my engine starts to tick loud from low oil. But I'm putting at least 5 quarts or more between oil change. It has about 150k on the clock i usually use mobile 1 10 w 40 but ATM I'm running Valvoline high mileage synthetic 10 w 30 and I added the synthetic lucus oil as a test. I'm going back to mobile 1. But I don't think the oil is the problem.

rguzz
Posts: 591
Joined: 7 October 2015
Year and Model: 1996 850 turbo
Location: VA
Been thanked: 24 times

Post by rguzz »

Compression test the car. And have a shop check engine temp when it is hot.

shegarty
Posts: 302
Joined: 12 September 2011
Year and Model: 1998
Location: port hope
Has thanked: 12 times
Been thanked: 8 times

Post by shegarty »

do you see bursts of blue smoke when you first start it up or goose the throttle? if so it could be blow-by on worn rings or you could be losing it through the turbo if you shaft or seals are worn. +1 on posting some more diagnostics (ie. running temps). check the oil for coolant and the coolant bottle for oil - could be head gasket
98 S70 T5 SE 298k km (daily)
87 740T sedan (current project)
previous - 90 745T; 94 855 T5

User avatar
hanzbe420
Posts: 535
Joined: 10 December 2010
Year and Model: 2006 s60 2.5T
Location: CT,USA
Has thanked: 4 times
Been thanked: 1 time

Post by hanzbe420 »

No smoke. Ive compression checked it about a year or two ago and they were all fine, no blow by three pcv Is working good, tcchanged the radiator and the temps defiantly went down. The fan was always coming on with the old radiator, then the radiator finally developed a leak, and was even leaking transmission fluid into the coolant, but that was OK add long add it want the opposite coolant into tranny fluid. But yea I put the new radiator and the fan hardly ever comes on now. So I'm pretty sure g that was the problem if not then miss the problem. I'll have to test the ending temps now with the new radiator. But Yea What A difference putting in a new radiator from an old leaking one lol. Alot cooler with new radiator. got it cheap to for 53 bucks and free shipping.I shoulda got the hardware with the o rings and new clips but I used worm clamps and tightened them real right over the old clips, but I was missing an oring or two they where brittle so during uninstall they broke. But even know no orings the worm clamps tightened Tyne clips in so they don't move at all. Sorry for the rant. Basically just wanna know the next plan of action if the canister is fine. thanks on advance all.

User avatar
FLXC90
Posts: 1132
Joined: 18 August 2014
Year and Model: 98 V70 T5
Location: Florida Panhandle
Has thanked: 16 times
Been thanked: 45 times

Post by FLXC90 »

Does your radiator also have an integral OIL cooler? it may have been losing oil into the coolant and burned/leaked that too. Has the oil consumption decreased or still high?
Current Volvos:
1998 V70 T5, 112k sat 5 years, still in mechanical coma (finally at the top of the pile )
2004 XC90 T6 AWD: 186k, 60 on transaxle ( traded in )
1998 POS70 N/A: DD/training aid, 236k but really about 240k, I think...ABS module( passed on to son who sold it)

Post Reply
  • Similar Topics
    Replies
    Views
    Last post