Question about Cadillac Seville
Thats one of your feul injectors are shorted out i promise shops wont ever figure it out either trust me replace ur feul injectors
Posted on Jul 07, 2013
You did'nt say if the oil was changed recerntly, or any other repairs? Theres warning lights on the dash and they should come on if theirs a problem bad enough to stall the engine. The antifrezze coolant needs to be changed once a year in these cars, and if it does'nt happen the cooling system will start to clog. You explain that if your going on your regular 8 mile run the car seems to run OK it's just when hung up in traffic that the car acts up. Pushing the info button on the dashboard display will roll around to coolant temperture, Once there drive the car, It should get up to 195 F fairly quickly and once it's there it should stay under 205. If it doesn't these a number of things that'll cause it. It riding down the raod doesn't do it them the raditor may be OK but if sitting still and running at low speeds or stopped in traffic, and it heats then maybe the cooling fans are not coming on or their not running fast enough, The fans are variable speed and the system has a neet controller that runns the fans. As the fans get older they draw more and more power they can even lock up and not turn. Because of this neet conrtroller theirs no fuses on the fans themselves and the controller fails and then both fans don't work even if one of the fans are still good. It's hard to get to the fans with the car put together as their covered real good. I expect the check engine light to be on if theirs troble with the controller. Holding the off and warmer buttons on the heater control down at the same time will put the conputers in diadostic mode ( not all Northstars systems will do this) but it doesn't hurt the car to try it. once in mode it'll ask PCM?pusing the up down keys will advance or down will look at it. Their is likly 7 computers that the system will look at and it's likly that there are many stored codes. Many of the problems stored are not real problems but somthing that happen sometime and is not always happening now. Keeping this idea in mind write down all the codes and what system reported them PCM, ABS, SRS, on thought the whole list. Even with alot of practise this can take alot of time and as the key in on and the cars turned off these can run down the battery so you need to think about the quality of the battery or have a battery charger hooked up, while doing this. If it turns out theirs a problem with the controller, You may be able to find it used at a wreaking yard or in an EBay store used. Thiers other reasons the car can heat and die. The head bolts are well known to pull out and need to be rethreaded ( major engine teardown). Northstars are good until their bad and when they start leaking internally, it's an uphill battle, and some very good mechanics can fix it but they don't always work at the dealer, If their that good they can make more and do what they want working for themselves. Most of the things I've went over require that your an experienced car maechanic and have worked on Cadillic's before. Finding the right mechanic to help you may require you to interveiw the professional parts salesmans that work in the back of auto parts stores selling to the professional shops in town they;ll know the mecanics that but these kind of parts and they do this kind of work. I hope you come across the right one as all this work if figgered out wrong or down wrong can cost alot of money and your car still won't be fixed.
Posted on Aug 08, 2010
How hot does it get?A reference for the heat guage would be better if described middle of the guage,near the red(if there is red),about halfway between middle and maximum,etc if it is even moving.Also are your fluids fine?This is fairly odd.Please reply and we'll try to figure this out.
Posted on Aug 01, 2010
Could be many thing....do you have any codes present?
How many miles?
are the fans coming on?
let me know and i'll get back to ya
Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/sean_54c3a3dc48a7773c
Posted on Aug 01, 2010
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Posted on Jan 02, 2017
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