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Engine Problem

Old Nov 7, 2004 | 09:50 PM
  #1  
Ovanin's Avatar
Thread Starter
Joined: Nov 2004
Posts: 2
Default Engine Problem

I own a 1994 E420. 56K miles.
In the past 18 months, after the car sits for 7+ days, it starts fine but after 2-3 miles, begins to misfire, huge power loss and some backfiring.
Brief shut down and the catalytic converters are going snap, crackle & pop. If I then let it sit for 7 hours, it runs fine.
Mechanic says it shows no codes.
Help, please!
 
Old Nov 7, 2004 | 10:53 PM
  #2  
sleepwalker's Avatar
Super Moderator
Joined: Apr 2004
Posts: 7,050
From: Philippine Islands
Default RE: Engine Problem

catalyst not blocked?
ignition timing fine?
ignition coil resistance is fine?
 
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