02-13-2011, 01:18 AM
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#1 |
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Stock
Join Date: Feb 2011
Location: cleaveland
Posts: 1
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1990 supra misfiring
the water pump went out and is now misfiring ant ideas on what the deal is got a new pump coming but not sure why is running funny
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02-13-2011, 01:49 AM
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#2 |
 Toyota Racing Development Join Date: Apr 2007
Posts: 5,038
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You've probably blown the head gasket, but start with checking for diagnostic codes:
Cygnus X1 Home Page - Online Toyota guides and manuals Have you checked your oil for contamination? Start by looking under the oil cap for something like chocolate pudding or beads of water. You can pull the spark plugs to read the plugs and look if any of the pistons look a lot cleaner than the others. Finally, a compression test is easy to do and you can usually borrow the tool from a local parts store.
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