Date registered: Jan 2007
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Backfiring thru exhaust, engine cuts.
Hi, I have a 1984 280SE and recently replaced fuel filter, replaced fuel pump, replaced battery, replaced fuel tank (had rust in the other one) replaced plug leads. Engine ran fine for six months after all of this. Engine cold starts fine. After warm up acts like too much Christmas spirit (stops and starts on the run) until I have to stop for lack of power. Engine continues to run. I have to put into Park or Neutral and idle for up to ten minutes until you can sense the power returning, then no more problems. WAIT! If I let the car sit for more than three hours I get a repeat of the same. I have now replaced exhaust system blown out from a backfire.
Local service dealer cannot find anything wrong as car was on best behaviour when I took it there. He replaced fuel filter again and car ran OK for 24 hours. Now back to its old tricks.
Please, can anyone help? I am thinking checking ground from battery, replacing coil, replacing plugs and putting spirit in the fuel in case I have water in there somewhere.