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Very Poorly running 850 850

uid 16216's pic
posted by  NBZ on  Wed Jul 20 04:25 CST 2005
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last visit: Thu Feb 2 21:31 CST 2012
[RELATED]

Will,
A couple of things you could check...
1. Idle motor clogged (located just ahead of the throttle assembly, 2 vacuum hoses and 3 prong connector.) see Bay 13.
2. Dirty EGR - see Bay 13.
3. Clogged or leaking fuel injectors.
4. Low voltage after start up - under 12VDC can cause the fuel pump relay to cut-out intermittantly.
5. Vacuum hose cracked (could be anywhere); or diaphram located below EGR.
6. High water content in the gas (high heat and humidity exasperates this problem.)
Good luck and let us know.
Armie


--
'94 850 154000kms '86 760GLE 272000kms 95 Silverado4x4






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