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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for May 12, 2012
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2008 Dodge Ram 1500 SXT 5.7L Misfire VIN: 1D7HA18298
Found ignition coil on cylinder #3 at fault. After replacing coil crank codes and missfires went away Trouble codes: P0300, P0339.
2001 Jeep Grand Cherokee Limited 4.7L Hesitation, Surge, Cuts out, Misfire VIN: 1J4GW58N31
The fix for this one was the right timing chain hydraulic tensioner. The engine had not jumped time. But the ratchet mechanism that keeps the tensioner extended was bad. I guess when it reached so many rpm oil pressure was enough and the chain tension was enou... Trouble codes: P1391.
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