Cadillac DTS Questions

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Put new plug & coil in #6. Motor runs rough, shifts rough. Car was fine before this. Also, disconnected connection to coil while motor running. Saw additional loss of power. Autozone says scan shows misfire in #5!!! How cld this procedure affect opposite cylinder!? DIC shows Service Stabilitrak and Traction Control systems. Should I put old plug and coil in cylinder #5??? Thx

while car is idle or running, there is a spinning or whinning noise. Why?

It sounds like it was to start but isn't turning over. Is the possible damages worth fixing

My road is bumpy and the car seems to bounce a lot, sometimes sounds squeeky

trans grabs or slightly jerks when cold. afterwards from start when warmed up, it shifts ok.

I've replaced the bulb

can run for miles with no issues than it starts with bell ringing notifying me that parking assistance is off, ABS messages, stabilitrak not working, traction control on engine light on, transmission shifts poorly than it goes off return to normal for days than starts all over. OnStar reports a control modular is bad. Dealer had car but after 170.00 said It would need to get worst. dealer said their were many error codes OnStar said they would give codes to anyone doing work on car I believe one was 1u

trainmissions oil run out

lines are leaking

I check my oil and it is not low.

The car has a hesitation when car idles and then stops.

And the brakes is to tight and i can not drive cause there is no brakes so what cause the noises in the manafor and why it keeps shutting off and its going to high on the rpms is going to high when i start it up

Tried to start, i.e., ran for a few seconds, and then shut down. Trying to retstart, engine just keeps turning over. Mechanic replace cellinoid, and cranked. Now will not crank except for yesterday. Sat in Sun all day. Cranked right up. This morning, will not cold start. I do need to do 100,000 mile tune up/service.

Only when stopped I smell it

Dealer said to replaced requires that bumber and grill be removed at cost of $220.00. is this correct.