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Bogging 700 1991

posted by  Romeo on  Fri Nov 15 11:34 CST 2019
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780 turbo. If it had a carb it would need an accelerator pump








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Bogging 700 1991

posted by  james_a_sousa on  Tue Nov 19 22:15 CST 2019
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last visit: Thu Oct 23 18:51 CST 2014
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Check the plug to the mass air sensor. One of the pins may have backed out, causing it to make a poor connection or none at all. This just about the only connector in the engine compartment that gets unplugged on a regular basis - when the air filter is changed. This happened to our 88 745 GLE when it had a tune-up by a Volvo dealer!

Also check your air cleaner. In our '90 744 TI, the top of the air box was lined with foam rubber - the foam failed and clogged the air filter.








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Bogging 700 1991

posted by  rstarkie on  Fri Nov 15 11:48 CST 2019
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last visit: Fri Oct 24 10:14 CST 2014
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Is it bogging only when the turbo gets involved? If so look for a blown turbo hose or perhaps a fault in the intercooler.

Randy
--
Any twenty minute job is just a broken bolt away from a three day ordeal







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