Question about 1994 Volvo 940
940 volvo runs ruff changed plugs and wire checked timing and doesn't eem to have a vacum leak replaced fuel pump rrelay and wire that attaches to trans also replaced part next to air filter.can i chek engine code to find problem? thanks tom
You may have a valve or valves leaking which will cause it to run rough, have a leak down test done or a compression test
Posted on Jun 22, 2009
Have you a leaking injector? The seals between injector and cylinder head can harden and crack. Check by dribbling a little light oil round the injector at its joint with the head while the engine is running.
Posted on Jun 28, 2009
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Posted on Jan 02, 2017
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