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94 850 CHECK ENGINE LIGHT

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

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Chouns

94 850 CHECK ENGINE LIGHT

Post by Chouns »

:? My 'Check Engine' light has come on twice now since I had my thermostat replaced. My step bro is a Volvo mech in Westport CT. & he reset it twice, but it has come on again just after a day or so. The car runs great & does not seem to have any noticeable problems. I wonder why it keeps coming on....???

Any Suggestions...??

Chris in Connecticut

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matthew1
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Post by matthew1 »

You should pull the codes, or have your brother do it. That will tell you specifically what the problem is.

Among about 50 things, it could be an O2 sensor, which besides the light will not reveal itself until one day your milage drops below 15mpg or so. :?
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1998 V70, no dash lights on

1997 850 T5 [gone] w/ MSD ignition coil, Hallman manual boost controller, injectors, R bumper, OMP strut brace

2004 V70 R [gone]

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Chouns

Post by Chouns »

Thanks :D
He told me if it came on again that he would check out the codes. I forgot to mention that over the winter I rear ended a Ford Taurus straight on. Although my speed was under 15 mph. The weight of my Volvo was enough to total the entire front end.

When I brought the car into the my mech. he told me that several vacuum lines were pinched & a few other sensors needed to be replaced. Basically my step bro told me that the car may never be completely the same, but that I would be able to drive w/o any pre existing problems from the accident. Thank god the original owner kept up on every service check up, even after the warranty expired :lol:

I look at it this way, I practically stole this car for what I paid for it. When my Ins. Co. aprraised the damage I was amazed to hear how high they appraised the cars value at. Volvo has ruined me forever, I will probably never be able to buy another make of vehicle again..!


Chris in CT.

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