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-   -   87 420SEL Hesitation Problem (http://www.peachparts.com/shopforum/tech-help/170857-87-420sel-hesitation-problem.html)

Teacher 11-19-2006 10:19 AM

87 420SEL Hesitation Problem
 
Engine bogsd down for 3 - 5 seconds on full throttle acceleration. Normal acceleration car runs fine. Changed the plugs and fuel filter? Both fuel pumps seem to be working all though did not do a pressure test. Any ideas?

mbdoc 11-20-2006 09:26 AM

Fuel pressure OR fuel pressure differential is the most common problem for hesitation on that car...system operates at 100+psi


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