Question about 1998 Volvo S70

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I have a 1998 Volvo s70 manual. My engine light came on this morning. Stopped at an auto parts store and the did a diagnostic for me finding it needs an Engine Coolant Temp sensor (AutoZone, #TU251 part). I need to know where that is on the engine, is there an on-line diagram to look at? How accessible is it? Could low anti-freeze cause this? When I returned home and shut my car off the engine cooling fan continued to run...also...I noticed the heat coming out of the inside vents cooled as I was coming home...my husband is thinking maybe it needs coolant...which is likely to be true...but would that have anything to do with the sensor going off and the code saying it was the Engine Coolant Temp Sensor? Thank you for your assistance.

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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Car Fixer

  • 184 Answers

SOURCE: Check engine light on and Troubleshooting code is P0116

Hi, I managed to find a graphic illustration of the ECT sensor.
02c7b2a.gif

Good luck!

Posted on Dec 15, 2008

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Anonymous

  • 1 Answer

SOURCE: Replace Heater Core for Volvo S70 (1999)

It is your heater core. I fixed mine for $144. Ordered the new part on Ebay and followed these instructions http://www.volvospeed.com/vs_forum/index.php?showtopic=9717 It was very simple, I'm a middle age grandmother! The hardest part was cleaning up all the antifreeze. You will need a shopvac, a small one is $20 at WalMart.

Posted on Feb 12, 2009

Ronnie Wilson

  • 1596 Answers

SOURCE: on my 1998 volvo s70 the floor is wet with coolant on the drivers side and when using the a/c you can smell freon and you can see a white fog coming through the vents

Your Heater Core is Bad= Coolant on Pass Floor
If A/C Does NOT blow Cold anymore the Evaperator Core is Leaking
First time I have seen them BOTH go Bad in 30 rs of Bein A Mech/Tech

Posted on May 31, 2009

Anonymous

  • 1 Answer

SOURCE: Volvo Cooling sensor / fan arent working

My air conditioner or fan turns on when the car gets too hot. It doesn't happen every time but often enough to drain the battery. It is a 2001 Volvo S60 turbo. I don't know where to start.

Posted on Jul 14, 2009

scottyoung56

Scott Young

  • 91 Answers

SOURCE: speed sensor volvo s70 1998. Is this an easy fix?

it is on the back side of the roter and yes it is easy to fix and no there is on special tools just undo the two bolts pull it off unpluge it and then put the new one on and have a good day

Posted on Aug 30, 2009

Testimonial: "Direct answer to a direct question. Replaced the paret in 5 mins. Thanks"

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before I do a job like this i always buy a haynes repair manual for my year and car. take the time to read up on this and then well knowledged i go for it.
Good luck and thanks for your question and I hope my suggestions help. Don't forget to rate me.
burdfrenzy
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1998 Volvo S70 AUTOMOBILES
Includes starter and alternator replacement procedures for domestic and imported 1998 Volvo S70 cars and light trucks from 1990+.

Alternator, Replace -> With Air Conditioning -> Without Air Conditioning
Vehicle: 1998 Volvo S70 2.3 L5 GAS

With Air Conditioning

  • Disconnect battery ground cable at battery.
  • Detach pipe from control module box.
  • Remove auxiliaries belt.
  • Remove power steering pump and place it on top of engine.
  • Remove upper bolt.
  • Remove bolts common to alternator and compressor; lower bolts on alternator and upper bolts on compressor.
  • Raise and support vehicle.
  • Loosen lower bolts for compressor (so that there is some clearance).
  • Remove air baffle.
  • Lower vehicle.
  • Disconnect warning lamp positive lead and connector from alternator.
  • Pull alternator upwards/away.
  • Remove alternator from vehicle.
  • Reverse proc...

Jan 05, 2011 | 1998 Volvo S70

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Electronic Ignition Fault Light On


It is probably due to a faulty sensor somewhere, but without proper diagnostic equipment it is virtually impossible to tell which one.

A modern fuel injected engine will have sensors to monitor throttle position, manifold pressure, coolant temperature, air temperature, crank speed, camshaft position, exhaust gas oxygen, pre-ignition, etc, etc, etc.

Diagnostic equipment will be able to read the fault code from the vehicles computer and tell you where the fault lies.

The light cannot be reset manually. It will go out once the fault has been rectified.

Hope this helps!

Jun 20, 2009 | 1998 Volvo S70

1 Answer

I drive a volvo s70 and my check engine light stays on its a 1998


Hi you need the car putting on a diagnostic machine to determine the problem, these lights come on for a reason, Hope this helps

Regards
Steve

Dec 11, 2008 | 1998 Volvo S70

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