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volvo s cranks but doesn t start i have replaced the

Sent to Car Experts January 08, 2006 12:26 p.m.

1997 Volvo S 90 cranks but doesn't start. I have replaced the RPM sensor, I have tried replacing the engine computer but it still would not start. I have no spark and no injector pulse. The car will start after many long cranking tries. The car has about 75,000 miles. I am an ASE master mechanic with many years experience and this once has me stumped. Any suggestions what might be the problem. Could it be the coolant sensor even though the one in there test fine?

Optional Information:
1997 Volvo S90 6 cylinder

Already Tried:
Replaced engine computer, voltage pin test computer, electrical connections, new rpm sensor, substitute know good computer, tested coolant sensor

Customer (name blocked for privacy)

Status: Closed Value: $8

Info Request
January 08, 2006 12:37 p.m. (11 minutes and 22 seconds later)

REPLIED to Info Request

Do you have power supply to the injecters and coil?

Is there another model# this car goes by. I'm only seeing a few different 850's and a 960 in that year?

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Hammer Time -- L1 Master Technician -- 98% Positive Feedback on 2710 Car Accepts
ASE Mastertech with Adv level Engine performance cert.

Reply to Hammer Time
Sent January 08, 2006 2:47 p.m. (2 hours and 9 minutes later)

This is an S90. I have power supply to the injectors and coils.

Customer (name blocked for privacy)

Info Request
January 08, 2006 2:57 p.m. (9 minutes and 54 seconds later)

REPLIED to Info Request

Alldata has no listing on that model so I can't find any schematics or component listings.

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Hammer Time -- L1 Master Technician -- 98% Positive Feedback on 2710 Car Accepts
ASE Mastertech with Adv level Engine performance cert.

Reply to Hammer Time
Sent January 10, 2006 8:20 p.m. (2 days and 5 hours later)

It might be listed as a 960. I have no spark and no injector pulse.

Customer (name blocked for privacy)

Answer
January 10, 2006 8:32 p.m. (11 minutes and 53 seconds later)

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Hammer Time -- L1 Master Technician -- 98% Positive Feedback on 2710 Car Accepts
ASE Mastertech with Adv level Engine performance cert.

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