Thanks for the response. I should have mentioned that no dash lights come on during this , not even a check engine light. I know that my husband has put techron in a few times in that past but not since we have had this problem.

MB FRAU

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Joint Owner of:
'93 400E (80k miles)
- Smoke Silver/Parchment
'93 300CE Cabriolet (43K miles)
-Midnight Blue/Parchment