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94 850 manual wagon, cranks no start after shredding serpentine belt

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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Tomasdvolvo
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Joined: 4 July 2018
Year and Model: 1994 850
Location: California

94 850 manual wagon, cranks no start after shredding serpentine belt

Post by Tomasdvolvo »

My 1994 850 cut out going over a speed bump and now won’t start. The serpentine belt was half shredded with pieces wrapped around pulleys. My tensioner is not in line with the belt I just realized after replacing the belt but all pulleys spin freely so I don’t see this keeping the car from starting, but this is causing a new line of wear exactly where the other belt shredded. (3/4 of the belt width was still there) It cranks, but no start. I have spark and fuel. It attempted a start and blew black smoke from somewhere under the hood and died again (this start up was noisy and lasted less than 5 seconds) I have now also noticed, may or may not be affiliated, but there is a clear oily liquid now soaking into the driver side floor. It’s coming from the area of the heater core but it’s not the antifreeze/burnt water smell it gave off before replacing that a year ago. I noticed a clear odorless oil drip on my driveway, coming from passenger side a couple days before the belt incident, but that’s on the opposite side of the car and again I don’t know if it’s affiliated with the driver side leak or the engine not starting but I am giving all information noticed. This leak could possibly be right under pulleys or passenger side brakes.

The engine turning also seems sluggish and noisy when trying to start the car.

If any other info is needed, please advise.

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abscate
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Post by abscate »

I suspect the tensioner is the wrong part

The SERP belt won’t prevent starting so you should follow the nostart thread
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June
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Post by June »

Could the clear oil in the driver's side floor be break fluid leaking through the booster? When the belt wrapped around the pulleys could it have pressed on the timing cover causing the timing belt to skip a tooth or so? June
My Volvo cars owned
1989 740 GLT ordered
1994 850 4door standard shift ordered
1996 960 ordered
1998 S90 ordered totalled after 3 weeks
1998 V70 GT dealer stock car
2002 S80 T6 ordered totalled
2004 S80 T6 dealer stock car and current car owned

Tomasdvolvo
Posts: 4
Joined: 4 July 2018
Year and Model: 1994 850
Location: California

Post by Tomasdvolvo »

abscate wrote: 04 Jul 2018, 17:03 I suspect the tensioner is the wrong part

The SERP belt won’t prevent starting so you should follow the nostart thread
As far as the tensioner and belt that is definitely our issue for a chewed belt, but we can’t figure out the no start. I’ll look for that thread, thanks.

Tomasdvolvo
Posts: 4
Joined: 4 July 2018
Year and Model: 1994 850
Location: California

Post by Tomasdvolvo »

June wrote: 04 Jul 2018, 17:10 Could the clear oil in the driver's side floor be break fluid leaking through the booster? When the belt wrapped around the pulleys could it have pressed on the timing cover causing the timing belt to skip a tooth or so? June
Hi June, we will check on the break fluid from the booster. As far as the timing belt, the cover looks fine and we also have tested the belt and timing and it appears ok. Marks are lining up 100%.

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June
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Post by June »

Tomasdvolvo wrote: 04 Jul 2018, 17:45
June wrote: 04 Jul 2018, 17:10 Could the clear oil in the driver's side floor be break fluid leaking through the booster? When the belt wrapped around the pulleys could it have pressed on the timing cover causing the timing belt to skip a tooth or so? June
Hi June, we will check on the break fluid from the booster. As far as the timing belt, the cover looks fine and we also have tested the belt and timing and it appears ok. Marks are lining up 100%.



Thank God the timing belt is fine! Could there be some pieces of the belt jamming something out of site like behind the balancer? Is there a sensor or wire that could have been damaged or unplugged slightly? I sure hope you figure it out. June
My Volvo cars owned
1989 740 GLT ordered
1994 850 4door standard shift ordered
1996 960 ordered
1998 S90 ordered totalled after 3 weeks
1998 V70 GT dealer stock car
2002 S80 T6 ordered totalled
2004 S80 T6 dealer stock car and current car owned

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rspi
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Post by rspi »

All clear oily stuff is coolant.

The car will start without the serpentine belt, so you can take that off and have that removed from the equation.

'95 855 T-5R M, Panther - 22/28 mpg, 546,000 miles
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Tomasdvolvo
Posts: 4
Joined: 4 July 2018
Year and Model: 1994 850
Location: California

Post by Tomasdvolvo »

here is a video of us trying to start the vehicle. It does occasionally backfire while attempting to start but didn’t in this particular video.


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