Question about 1999 Volvo S70

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I have a 1998 Volvo S70 non-turbo. It was running fine and all of a sudden it started running ruff and I lost power, when I stopped at a red light it died. When I got out of the car it smelt like rotten eggs so I assumed that the catalytic converter was bad and I had it replaced. When I went to pick it up, it was still running bad and I am smelling a small amount of gas. What could be causing this? Would it just be the plugs and wires, or maybe the computer or something else?

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Get an OBII scan done (any good parts store can do it) Sounds like O2 sensors but have scan done & codes will identify the problem(s)

Posted on Apr 02, 2011

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What do I when my 98 volvo s70 2.4L engine has trouble codes po133 & po442?


Po133 is and oxygen sensor code. Replace the front oxygen sensor use a bosch or OE sensor only. P0442 is and evap system leak. Most common fault is a cracked hose at the evap cannister at the right rear of the car.

Mar 19, 2015 | 1998 Volvo S70

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Why would my 1998 s70 suddenly decellarate from 75 mi p/hr on interstate to 0.what could be the cause, no engine noises or smoking


Did the engine stall or did it just lose power but stay running? Did the gauges fall to "0" or idle?

Usually when something major like that happens, the check engine light will come on and there will be codes set in the computer.

I would start by checking the codes, and if at all possible, use Volvo's VIDA and DiCE interface to make sure you get the right codes. Some generic code readers can't read all the Volvo specific stuff.

That will get you closer to the actual problem.

Rule out the simple stuff. Do you have enough gas in the tank? The gas gauge might be wrong and you're empty. The ETM could be wonky and on its way out. Google "Volvo ETM" and read up - there's a sticker on it and the color of the sticker could indicate if you have the old (likely faulty) module or not.

Ignition wires - these engines are coil on plug if I remember right (they changed around those years '98 or '99) and then you check the little wires to the coils.

Jun 23, 2014 | 1998 Volvo S70

1 Answer

Triangle light on 1998 s70 volvo


sounds like a coil issue

Sep 03, 2012 | 1998 Volvo S70

1 Answer

1998 v70 xc timming belt , have problems setting up timming marks.


This shouldn't be a problem. I can't seem to send diagrams through this forum so please email me at iambanshee74@yahoo.com and please include the engine size and whether it is turbo or non turbo.

Aug 03, 2011 | 1998 Volvo S70

1 Answer

Can't find a test for the vehicle speed sensor.


The bad news is the only part that is connected to all of these is the ECM or computer.

Jul 20, 2010 | 2000 Volvo S70

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I have a 98 volvo s70 and i dont know the engine size how do i figure out the difference between 2.3 or 2.4


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Nov 19, 2009 | 1998 Volvo S70

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SRS light stays on-mechanic says they want you to replace ''things'' and check system out after 10 years, so light automatically comes on and stays on. If car was never in a crash, not necessary. Correct?...


your mechanic is obviously trying to get you to pay for minute repairs...unless something is obviously wrong it could be a fuse...or their might be a problem...cant be sure without seeing the vehicle myself...but dont go paying for a bunch of random replacements it wont change the light situation....and yes it is turboed

Mar 30, 2009 | 1998 Volvo S70

2 Answers

Chain smoker


Turbo oil seal is probably bad. This lets oil leak into the air intake from the turbo bearing. If smoke goes away during hard acceration, then this is probably your problem. Turbo replacement or rebuild is the fix for this.

Mar 20, 2009 | 1998 Volvo S70

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