Question about 1994 Volvo 850

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Power loss under load on hills and from take off

148000 kls recent loss in power , more noticable on takeoff and going up hills around the same time the electronic engine fault light appeared also slightly harder to start also around this time 205/65 tyres fitted not 205/55 as recommended

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The codes stored in the engine computer are needed to further diagnose this problem. To check the codes, go here!

Retrieve the codes in terminal A2. (and A6 if you have a non-turbo)

List the codes here and I can assist you further.

Bret
RepairPal.com

Posted on Nov 17, 2008

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1 Answer

Loss of power


I can think of two possibilities.
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Both possibilities are usually accompanied by reduced acceleration and a drop in performance but when the problem starts these things may not be detectable.

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Slowing down to go up hill hard to press the gas


Your catalytic converter sounds like its clogged...When clogged it restricts exhaust and puts excessive back pressure on motor causing loss of power ,especially when engine is under load.(going up hill).ONE WAY TO SEE IF THIS IS THE PROBLEM IS TO LOOK UNDER VEHICLE WHEN PROBLEM OCCURS...tHE EXHAUST PIPE BEFORE THE CATALYTIC CONVERTER WILL BE GLOWING DUE TO RESTRICTION....

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It loses power on acceleration and serious loss of power on hills


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