Cadillac Repair Questions? Ask a Mechanic for Answers ASAP
Hello, my name is Bobby. Thank you for the question. Can you tell me if the check engine light is coming on?
What is going on????? I gave you my credit card information yesterday for my 2000 Cadillac Escalade and you ran it thru for $5 on the 6th and $28 on the 7th which caused my credit card company, CHASE, TO NOT PAY IT BECAUSE OF THE TWO TRANSACTIONS and I received a phone call from CHASE this morning asking if it was FRAUD. I have been asked to give you the credit card info AGAIN which I did. Gary XXX XXX XXX XX
I am sorry Gary. I was not online earlier today. I do not control the charging of your card, I am just here to help with the question. If you would like to continue I would be more than happy to help. Please let me know and we can continue.
Thank you for getting back with me. Most of the time this issue is caused by either a failing throttle body or an issue with the mass air flow sensor. The throttle plate may be sticking at times and is causing this, or the sensor is reading incorrectly making the computer think that more air is coming into the engine then what really is. These are where I would start. I have also seen a failing fuel pressure regulator or intake gasket cause this also.
I would like to continue to help you with this. If you want me to opt out I will and it will open the question up to other experts.
I would love to continue with you. Can you tell me if it occurs every single time you drive it? The reason I ask is because I have seen a lot of intake gasket issues that can be hard to find without a smoke test because most of the time the leak is on the bottom side of the intake. Also, the coolant temperature sensor may be not reading the right temperature. Has this been verified with a scan tool? If not see if it is reading colder than it should. if it is then the computer will add too much fuel.
Did he monitor the coolant temperature while running it? Most of the time this is overlooked by mechanics.
If it is driving perfect in the rain then that typically means that it runs better in denser air due to a sensor not reading correctly or something it getting moisture in it. Most of the time it is simply because the computer calculated the mixture different. The readings typically most affected are the MAF, MAP, and O2 sensors. A poor reading coolant temperature sensor will amplify this issue.
Thanks Gary. If I come up with anything else prior to that I will let you know. Otherwise have a great weekend.
It is possible that the transmission is not releasing through the converter when coasting. You would know if you put it in neutral when coasting and it changes.
When decelerating or when coming to a stop, if you put the vehicle in neutral will the rpm's drop or remain too high?
Thanks. I think that your mechanic is missing something, whether it be a sensor signal or a timing issue from a worn timing chain. I am going to go ahead and opt out of the question and allow other experts to see what they think. Hopefully you will get further help from there. Please do not respond or rate as it will then lock the question to me.