Question about 2004 Cadillac Deville
Soon as you start the car it begins knocking. Its coming from the engine. Also it has trouble getting up and going when you push the gas after stopping
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Posted on Jan 02, 2017
SOURCE: SERVICE ENGINE SOON
Sounds to me like you have a fuel issue. Try replacing the fuel filter and run a good injector cleaner through the motor with a couple of tanks of high octane gas. The service engine light can easily be tripped by weak detonation in the combustion chamber, causing very poor performance as well. Good place to begin before you start dumping $$ trying to figure out whats wrong.
Posted on Aug 06, 2008
Sometimes collapsed lifters or loose rocker arms can cause knocking sounds in an engine. However, the fact that there was a possible loss of oil pressure and that the knocking gets louder as the rpm's increase, would indicate that there is damage to a connecting rod bearing and possibly the crankshaft. If the latter is the case you are looking at a fairly substantial repair bill.
Posted on Apr 14, 2009
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