Cadillac Repair/hard start


QUESTION: when the car sets it has a hard start it dose not do this daily.
I have to pump the gas or hold it to the floor when its dose start there is a large puff of smoke from the exzust I think the
converters might be pluged  I am at a lost

I am lost too since you did not tell me year, make model.

Hard start is not a cat problem, so leave them alone! What color is smoke? Black?

You may want to pull the engine oil dipstick and smell the oil. It may smell of gasoline from a temporary flooded condition.

Intermittent (at times) problems are almost impossible to fix. You need the problem present to know if you fixed it.

When is the last time you changed the fuel filter?

---------- FOLLOW-UP ----------

QUESTION: I am sorry its a 2001 and I have oil in the spark plugs the smoke is white oil is good color I a, so sorry I did not give u a lot to go on
my mechanic is doing a top engine clean and replacing the plugs today

Hi Peggy,

2001 is a start==make and model?

White smoke is not oil-blue is. White smoke can indicate a blown head gasket from overheating the engine, which if a Cadillac aluminum engine I hope you did not do.
Is it oil on the plugs or coolant residue? Color of the oil was not my point. Smell for gasoline from a flooding condition. That will burn out the main and rod bearings quickly.

Not sure what he considers a top engine clean. Before these environmental whackos showed their ugly faces, to clean the upper portion of the engine, we would have engine running and inject trans fluid down the carb or in the throttle body until the engine came close to a stall. Served two purposes. Cloud of smoke so heavy, it not only cleaned the internals of the top portion of the engine, but was great for killing mosquitoes too-lol

Hard start issues are commonly caused from fuel delivery such as the fuel pump or filter.

Let my know how things work out in the future or if the problem is still there. I will try to assist you.

Merry Christmas,

Cadillac Repair

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Rob Painter


Alarm system questions cannot be answered on this forum. These systems are not what I can answer. Without being physically at the vehicle and not knowing what kind of electrical service has been done on the vehicle, there is no possible way to give an accurate answer over the internet. My expertise is in Ignition/key based anti-theft systems. These issues include GM VATS (resistor chip in key blade) PASSLOCK (MRD)-ignition lock rotation based, no special ignition key and the PKIII Transponder (computer chip in key) systems. These systems are not alarm based and are integral with the starting of the engine. This is why I cannot diagnose alarm problems without physically looking at the vehicle: Alarm systems are a completely different annimal than ignition key/lock based anti-theft system. Many alarm questions come from vehicles 10 years old, and since older, many hands that had been involved over the years.I am an expert in all GM factory (ignition/key based)systems. Alarm system questions pose to many situations beyond my knowledge as to what has been done to the vehicle over the years. Some guy may have actually wired the stereo into the alarm system. Who knows? Over my past 30 years in vehicle wiring repair, I have seen unbelievable wiring disaters done by guys that consider themselves "mechanics." I have seen stereos and alarms intalled using surgical tape. I have seen modules burn up, un-fused circuits, wiring jambed between the doors and even lamp cord used for a starter kill. To answer alarm questions over the internet without examining the vehicle is like asking; What does it take to remove a dent?


Education/Credentials-ASE certified. 11 years with a GM dealer and 17 years with a repair facility dealing with only the repair of theft recovered vehicles.

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