Question about Cars & Trucks
Posted by Anonymous on
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Posted on Jan 02, 2017
Check that you have installed correct type of spark plugs and wires are well fitted. SPARK PLUG 3.5 V6 Type Champion RC10PYP4 Plug gap 1.0-1.1 mm (0.039-0.043 in.)
Posted on Jun 03, 2008
Check for vaccume leaks and also you PCV valve. check the hose too. Visually inspect every vaccume hose you can find. Sounds like a leak .
Posted on Nov 10, 2008
same prob i replaced air idle control and cleaned out intake valve or altenator is not giving right volts and fuel pump on start up isnt giving right amount of gas cadillacs need fuel pump to be correct or whole engine will not run right
Posted on Dec 26, 2008
Here is the common cause of surges, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake
Posted on Jun 18, 2009
SOURCE: The rpm fluctuates at idle
It could be several things...low fuel pressure, a lazy 0 2 sensor, and even an IAC. If there isn't any service engine lights coming on, you will need a qualified tech to do the test since a lazy 0 2 sensor has to be looked at with some type of a volts meter and a scanner has the capability of doing a better job yet since you wouldn't have to get underneath the vehicle. Don't be fooled into thinking that it is just one thing; it could be several depending on the mileage.
Posted on Oct 03, 2009
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