Luvn737s Posted February 25, 2011 Share Posted February 25, 2011 I've put about 400 miles on my car (98 Forester) after changing the Timing Belt. Every mark was right on before I buttoned it up and when I first started it, it fired off immediately. Now, however I am noticing that cold starts take a few more cranks to fire off and there is some slight hesitation on acceleration until it warms up. Warm starts are fine. Could the ECU have masked a problem with the timing until the engine adapted to the off-time condition, or would any mistakes have shown up immediately? My original problem was a tight exhaust valve in #4 cylinder. That took 122K miles to show up. I wonder if the same problem has come up on another cylinder at 122.4K. Link to comment Share on other sites More sharing options...
Rooster2 Posted February 25, 2011 Share Posted February 25, 2011 Coolant temperature sensor. Link to comment Share on other sites More sharing options...
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