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96 850 random stall when hitting bump Topic is solved

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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Thatbluegsx90
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Year and Model: 96 850
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96 850 random stall when hitting bump

Post by Thatbluegsx90 »

My 96 850 turbo has a fast stall when hitting pretty significant bumps in road, rpm dies, check engine light and upshift arrow flash on and car dies for roughly a second then collects itself and runns fine, all lights are still on so i'm not thinking grounds, did a quick once over and made sure major things are plugged in fully, im leaning towards possibly the Fuel pump relay, primarily because of the age of it honestly, i know the P80 connectors are garbage essentially as a whole, but looking for a little direction to possible common things

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abscate
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Post by abscate »

That smells of electrical harness problems more than fuel issues.

Ignition switch, battery cables, terminal connector in the kidney fusebox are high mileage/ time wearpoints
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ZionXIX
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Year and Model: 1996 850 Turbo S/W
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Post by ZionXIX »

You could try wiggling/jabbing at the wiring harness while its idling to see if you can narrow down a location.
Scarlett: 1996 850 Turbo Wagon in Reagent Red Pearl ~210K mi
Norman: 2012 F150 XLT Crew Cab in Oxford White ~110K mi
Ember: 2005 XC90 2.5T FWD in Ruby Red Metallic ~83K mi *Newest addition to the fleet*
Ruby: 1997 850 Turbo Wagon in Reagent Red Pearl - parts car
Rose: 2020 Ram 1500 in Delmonico Red Pearl - SWMBO's Vehicle

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