S90 1997 Fan starts when car starts
S90 1997 Fan starts when car starts
fan starts and runs continuesly during operation of car. Fan continues to run for 5 minutes after engine is turned off then shuts off. Also temp guage jumps to 1/2 and fluctuates. Error code says eng temp LOW INPUT,PO117. What sensor may need to be replaced? and where is it located? PO410 is problem # two, Secondary air flow input. Is there a sensor to the air pump that would need changing?
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Ozark Lee
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I moved you to the appropriate forum where you should be able to get more appropriate advice.
On an 850 I would say that you have a bad ECT sensor or a bad connection to it. On a S90 I'm not sure.
...Lee
On an 850 I would say that you have a bad ECT sensor or a bad connection to it. On a S90 I'm not sure.
...Lee
'94 850 N/A 5 speed
'96 Platinum Edition Turbo
Previous:
1999 V70XC - Nautic Blue - Totaled while parked.
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe
'96 Platinum Edition Turbo
Previous:
1999 V70XC - Nautic Blue - Totaled while parked.
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe
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billofdurham
- MVS Moderator
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P0117 is usually the engine coolant temperature sensor. It is mounted on the thermostat housing.
P0412, Volvo code 442, is a little harder to diagnose as it covers four different faults in the pulsed secondary air injection (PAIR) system. Checking the system with a Volvo scan tool would show a second fault code of either 446 or 448. The secondary code points directly to the problem. There is no sensor in the system but there is a solenoid which would not throw any of these three codes.
The attachment shows what tests can be done but you will be hindered by not knowing the secondary code:
Bill.
P0412, Volvo code 442, is a little harder to diagnose as it covers four different faults in the pulsed secondary air injection (PAIR) system. Checking the system with a Volvo scan tool would show a second fault code of either 446 or 448. The secondary code points directly to the problem. There is no sensor in the system but there is a solenoid which would not throw any of these three codes.
The attachment shows what tests can be done but you will be hindered by not knowing the secondary code:
S90 PAIR fault codes.pdf- (1.25 MiB) Downloaded 182 times
Work was good - retirement is better.
1996 850GLT 2.5 20v Estate Manual.
1995 Peugeot Boxer 2.5Tdi Autosleeper.
Previously:
1984 244DL, Manual, Beige.
1987 744GLE, Manual, Green.
1991 960 3.0 24v, Auto, Silver.
1994 940T Wentworth, Auto, Blue.
1996 850GLT 2.5 20v Estate Manual.
1995 Peugeot Boxer 2.5Tdi Autosleeper.
Previously:
1984 244DL, Manual, Beige.
1987 744GLE, Manual, Green.
1991 960 3.0 24v, Auto, Silver.
1994 940T Wentworth, Auto, Blue.
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OEMVolvoParts
- Posts: 266
- Joined: 31 August 2009
- Year and Model: ALL
- Location: CA
AC fan relay 9442933 has been known to cause this issue, it is located next to the passenger side headlight. Mention MVS and receive free shipping from our page.
Thanxs all who helped.....Problems solved. sensor by thermostat was not making good connection at the connection, after cleaning it worked again. The other problem was a bad air hose to the air pump. I pinched it and it fell apart, it was the one about 3 inches long. Car is doing well. Thanx again for all your input 
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