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Check engine light

Tiny
FACTORYJACK
  • MECHANIC
  • 4,159 POSTS
The custome wheels should not make a difference on the range. What is the accuracy of the fuel gauge itself? There are some issues with fuel transfer from saddle to saddle, affecting fuel remaining, and therefore affecting range.
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Monday, February 25th, 2019 AT 7:46 PM (Merged)
Tiny
RICKYSH11
  • MEMBER
  • 74 POSTS
  • 2005 CADILLAC CTS
  • 6 CYL
  • 2WD
  • AUTOMATIC
My car has a rough idle, both when it is sitting still and drives kind of rough. When in park the rough idle goes away. The check engine light is on and it reads P0430 which I know pertains to the catalytic converter. Would the rough idle be a product of the catalytic converter going bad, and if I have to replace it would I need to replace the 02 sensors as well? Also, my sunroof is having some issues with closing all the way. At one point of time it would only close half way but I did the over ride procedure and now it closes all the way except about an inch, how could I go about figuring out how to fix this problem?
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Monday, February 25th, 2019 AT 7:47 PM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
On the motor, no the cat has nothing to do with the roughness and no, you dont have to do the sensors.

Start with a compression test to verify the motor is good.

As far as the sunroof, spray the tracks and cable and see if that helps before looking at a motor or track assembly

Roy
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Monday, February 25th, 2019 AT 7:47 PM (Merged)
Tiny
MSPAAP
  • MEMBER
  • 2 POSTS
  • 2006 CADILLAC CTS
  • 78,000 MILES
Can you tell me why My 2006 cts caddilac make a thumping noise when I turn on air conditioner. The thumping starts after I drive for awhile. It thumps a little when air is off but bad when it's on. It has 77k miles. No check engine light or any other l."
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Monday, February 25th, 2019 AT 7:47 PM (Merged)
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
You are at 2carpros. Com

You may have misread something (sorry) the "live mechanic thing" is most likely an advertisement for another site, seen in the margins of this site

Our site guarantees an answer quickly if you donate (whatever amount you wish)---and a free question usually gets answered too, maybe not so fast. We try really hard to help everyone!

Anyway, i'm a jeep cj kinda guy, who saw you patiently waiting

The thumping may be an actuator motor freaking out or maybe the fan

Continue to respond with findings. Even if I am no more help, each time you or anyone else posts, your question moves to the top of the forum. Others may see your question and be sorta be enticed to assist

Good luck

The medic
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Monday, February 25th, 2019 AT 7:47 PM (Merged)
Tiny
2CP-ARCHIVES
  • MEMBER
  • 4,540 POSTS
  • 2005 CADILLAC CTS
  • 125,000 MILES
Yesterday the check engine light on the car started flashing and when we come to a stop car started shaking but while driving it is fine. So I took it into the dealership they tell me needs spark plugs and a catalytic converter. 2-3 weeks ago I took it in for the oil change they gave me a list of things that it needed brakes, a little leak etc. But that was not one of the items. The ladies that call us make commission on what they get us to do so I'm not real comfortable. Can you tell me signs I should look for.
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Monday, February 25th, 2019 AT 7:47 PM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You have the signs and was told the issue. It can happen anytime no matter what work you had done before. If you dont believe them, get another opinion

Roy
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Monday, February 25th, 2019 AT 7:47 PM (Merged)
Tiny
2CP-ARCHIVES
  • MEMBER
  • 4,540 POSTS
  • 2003 CADILLAC CTS
  • 175,000 MILES
I recently bought this car and the check engine light is on. With the following codes.P2176, p0056, p0050, p0155, p0161, p0154, p0300, p0302, p0306. Any ideas where to start on the repairs?
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Monday, February 25th, 2019 AT 7:47 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Those are for the two O2 sensors ont he right bank pre and post of converter. But it cold be a converter. You need tohave a pro scanner to seeif theya re working or not. The other was a mass air flow sensor which it may need cleaneing or duckt work is off or has holes in it as well as any grommet offor holes in them. The last one wasn'r readable.
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Monday, February 25th, 2019 AT 7:47 PM (Merged)
Tiny
2CP-ARCHIVES
  • MEMBER
  • 4,540 POSTS
  • 2004 CADILLAC CTS
  • 83,000 MILES
When I start the car and the transmission is still cold it runs and drives fine but as soon as it starts to get warm it wont go into any gear and when you push the gas makes a weird noise. Then the car acts as its in safe mode will not go into any gear at all but has no check engine lights or codes.
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Monday, February 25th, 2019 AT 7:47 PM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
When was the last time you changed the oil and filter? The filter may be clogged or the trans has failed internally.

Roy
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Monday, February 25th, 2019 AT 7:47 PM (Merged)
Tiny
RANYRIZK
  • MEMBER
  • 39 POSTS
  • 2003 CADILLAC CTS
  • 3.2L
  • V6
  • RWD
  • AUTOMATIC
  • 140,000 MILES
I selected rear with the gearbox selector nothing happen like I selected neutral. I tried several times nothing happen still like neutral. The drive and 2, 3, 4 work normally. The scanner didn't read any code. I drove the car for half hour and selected rear it works normally. The car now works normally. Could anybody help me.
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Monday, February 25th, 2019 AT 7:47 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Have a trans guys check the fluid level
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Monday, February 25th, 2019 AT 7:47 PM (Merged)
Tiny
RANYRIZK
  • MEMBER
  • 39 POSTS
I checked the transmission fluid, the level is OK.
Is there an other possible cause?
Regards
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Monday, February 25th, 2019 AT 7:47 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
This sounds like an intermittent problem it could be the harness at trans or just plain old dirty battery cables or a ground. I'd say keep an eye on it and see if it happens again.
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Monday, February 25th, 2019 AT 7:47 PM (Merged)
Tiny
RANYRIZK
  • MEMBER
  • 39 POSTS
Thank you
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Monday, February 25th, 2019 AT 7:47 PM (Merged)

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