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I added the powder slowly through the filler hole before all the fluid was added. All the settings work fine and the door checks out fine. I have a low heat condition and was guessing the core is partially clogged......if that's possible. Guess there's only one way to find out. Have to wait for a decent day when time permits. I'm fixen to buy a different car and let my boy have this when he turns 16. It's in no hurry. He turned 12 in Dec.. It'll be a great back up ride until then.
at idle and ALL speeds.Dealer test drove-did it 1-2 times.but NOT at the shop.Checked fuel pressure-40LB Ok. I put two bottles of injector cleaner in
have driven about 60-70 mileseems some better but,just did it again as I came home.Any ideas as to what it may be..?? Have chg'd the fuel filter
about 3 days ago-no help..Dealer says cause no check eng. light on = the scope will not show anything ??
Yks, Deadeye
Did the dealer hook it up to the computer?
Intermitent missing.........
You do know that there is a procedure outlined in your owners manual to check your car for any codes that are stored or current?
When was the last time you had new plugs or wires?
Is the weather in your area rainy, wet, cold ?
dealer did NOT hookup--Said "If Check Eng light was not on-hookup would show 0"
Will check manual for codes....
No plugs or wires.(74K mi.) manual shows 100K
In NW Fla. Warm-Humid--No rain
Deadeye
I'd get a different dealer, or at least talk to someone else at that dealer.
There's a lot of codes that are reset after 3 starts or 40 starts. These will remain in 'history' and can be seen.
But - if you have a constant 'miss', that Cadillac's computer should be setting a code. If plugs are miss-firing, it will capture which plug is doing it.
Now if what you have is a fluctating idle speed, that probably would not set a code.
There is an Idle Air Control. It may need to be removed and cleaned up. The air ports to it should also be cleaned. Do you have an indication of a 'sticky' throttle? If so, this might be causeing the idle changes. What needs to be done is clean the throttle blade and intake areas around he blade with carb cleaner, toothbrush, and lots of rags. There could be a lot of crud on the throttle and it does not cleanly close, or open up cleanly as you press the footfeed.
Be carefull (too late now) with fuel injector cleaners in the gas. They have been known to eat the insulation off fuel pump motors and injector coils.
There are several other Cadillac Forums out there with extensive areas which should tell you how to put your car into diagnoistic mode (Cadillacs in last 15 years will do this), read the codes, and a database giving basic information as to what the codes mean.
I can't give a link to these, Edmunds doesn't like posting links, but googling searches should find them for you.
If you don't Do It Yourself on repairs, and would just like to start throwing parts at a miss, I would recommend changing the wires and plugs at 74,000 miles. Your Florida (isn't that where you said you are at?) heat, humidity, and salt could make these fail before the 100,000 miles the manual indicates. Use AC plugs only, 41-950 I think, platium. Probably should use factory wires also. This is not cheap. Plugs are $6 each and wires will be about $125...
One of the coil packs could also be failing causing a miss.....
I've not heard this before. Do you have a link to some informationn about this problem?
>throttle blade and intake areas around he blade with carb cleaner, toothbrush, and lots of rags.
Be careful with the toothbrush: the cleaner I used softened the bristles and they started coming out of the plastic brush handle.
2014 Malibu 2LT, 2015 Cruze 2LT,
I did some checking and find that boomer1b is right, the deVilles and Sevilles all used a variable suspension. I think that my 2002 Seville LS does not, but that is not completely clear either. I do know that replacing the worn parts is expensive, but if you intend to keep your car for a few additional years, I don't think it is that expensive.
The package is supposed to be the same great cleaner they use in their gasoline, only more concentrated for the obvious purpose.
I hope it doesn't do damage as described above. I'd expect that from some of the heavily advertised, alcohol-based additives.
2014 Malibu 2LT, 2015 Cruze 2LT,
Take a spray bottle of water and spray the wires, coil packs, and spark plug heads and see if you have a miss..........
Do coil packs, then plug wires seperately...So you will be able to track down which one is bad.
Try and do it after dark and you can see the spark jumping on the wires...........
CAUTION: Wear leather/rubber gloves and use eye protection !!!!!!!!!!
If it occurs again tomorrow,will try the water spray trick in the dark..
Thankful Deadeye sends...
As I said, Edmunds doesn't like links to competitor message boards.
But the 'resident expert' on the board strongly discourages using injector cleaners. He notes that the motor coils in the fuel pump and the windings in the injectors are exposed to fuel. Anything that might eat up the insulation on the windings will kill them......
Drive the fuel level down low. Add Chevron Techron to the tank, then add premium fuel (name brand station) up to the number of gallons for the size bottle you bought, 12 or 20.
Drive that tank down near empty. Repeat the process.
Do not use again for several thousand miles; if it didn't help that time, it is not the problem.
Spark plug wires: put a pinch of salt in the water to make it more conductive. I then wait till engine is cool later, and spray off the wires with plain water to wash off the salt (with all the salt used on the roads here in winter, they're probably coated with salt powder already).
I have felt the car change within 50 miles or so with injector cleaner put in that way.
2014 Malibu 2LT, 2015 Cruze 2LT,
My Seville has 31000 miles on it, and thus far I have not run any cleaner through it. It seems to run fine, so I am not concerned.
Techron 'might' be safe.
But the other board's 'resident expert' warned against exactly this procedure. Adding the cleaner, then driving down to add gas. He says he has seen the high concentration (cleaner plus low gas level) injure a fuel pump by the time it gets to the station.....
The fuel pumps may not immediately totally die, but start to not deliver full pressure and pull excessive current which also burns up the wiring at the tank connector.
The car is NOT driven with additive in a couple gallons of fuel.
2014 Malibu 2LT, 2015 Cruze 2LT,
My owners manual is quite explict about using methanol vs ethanol. Grain alcohol is OK, but the methanol is not. So, do not use any cleaners that have methanol in them. A synthetic cleaner is probably the best, but check the ingredients on the can/bottle to see what it says.
The same radio talk show mechanic talked about Techron by Chevron again today to a caller. He explained that the Chevron additives that have been highly rated for years are the reason Shell has added their V-Power premium fuel line. (Perhaps the high octane, slow-burning fuels need the extra cleaners.)
He says other major brands will be improving their additive mix and coming out with extra cleaners in a premium cost fuel soon.
>My owners manual is quite explict about using methanol vs ethanol.
I hope I didn't imply the Techron is another mouse milk additive to transfer money from your pocket to the selling company without giving much in return if anything for your car. I doubt it even contains methanol. I'll reread the bottle when I pick up another one.
2014 Malibu 2LT, 2015 Cruze 2LT,
I think that Amoco advertised their premium grade fuel to have extra cleaners in them some time ago. Gasoline in general has detergents in it to keep the cars fuel system clean. Name brands probably have more cleaners than "cheaper un-branded" fuels.
I have trouble with the concept that regular grade shouldn't have the same high quality detergent-like chemicals that go into premium fuels; that is, unless the premium fuel leaves behind more trash and requires better cleaners to keep the cars running right -- I suspect the latter is true.
Here in Ohio we have no gasoline quality control statewide, so you may be getting any garbage the brand/offbrand companies pipe in that they couldn't sell in states who do check quality at the pump. A few county people have started doing checks in Ohio. But occasionally we get fuel that isn't up to par sold here. So occasionally I use inject cleaners.
I normally use Shell and Mobile. Occasionally Marathon sold through a large discount department store chain from Michigan. None have alcohol in them up to the 10% allowed.
If you use premium in your Northstar, an occasional cleaner should be standard maintenance.
2014 Malibu 2LT, 2015 Cruze 2LT,
I do think adding a fuel system cleaner now and then may be good idea to keep problems with build up from happening.
At my last oil change (last week), I had the Chevy/Cadillac dealer put Mobil-1 in the crankcase. My oil monitor is giving me around 10,000 miles between changes, so synthetic is not too expensive - about $40 more, but now I am not worried about sludge building up.
http://www.gmoutlet.com
i just found this site. can you please tell me what you found out?
thanks, randy
Get your hands on both water hoses to the heater core, after the car is warmed up. If one is hot, one cold, it's clogged.
My 03 is just fine in this nasty NY winter weather.
The cruise is still a bit quirky tho............
a bit quirky as is yours. Seems to always set below the set button speed by one mile an hour and sometimes three to six. Having had it to the dealership three times without result I am living with it in that I have adjusted my driving habits to watch the speedometer a little more closely than I did with my 98 De Ville. When spring comes I may take it to the dealership for a fourth try. Could you describe the kind of quirk your referring to in a reply?
Would be helpful. If you or I get the matter resolved probably would help get the other one resolved too. I have also talked to the folks at Cadillac in the head office with out any more than a suggestion that I take it back again. It is not so bad that I can't live with it but would be nice if I knew what they needed to do to make it work better. I have looked with interest at the Chrysler 300C and will strongly consider it for my next car. I owned a Chrysler LHS before owning the 98 De Ville and never had any problem with the car during the three years I had it. From what I gather the 300C is a vast improvement over the LHS (1997 vintage). Most folks would probably consider comparing the two cars like comparing apples and oranges but I am favorably impressed with both.
Dealer checked it out when I took it in for a emission recall notice and a free LOF !
Nothing found...Reflashed the computer....Got a free CTS to tool around in all day !
My 04 Chevy truck with the cruise controls on the turn stalk are the best ! Rarely loses 1 mph even towing...........
The steering wheel controls are many and confusing !
I think its my old age (48)and confusion which button to push.............LOL!!!!
The thing that caught my attention in the 300 C was the 400 horsepower in the new version. I like the styling in both Cadillac and 300C models. Needless to say the prestige of the Cadillac name is still much more than Chrysler. I received much better service and courtesy at the local Chrysler dealership than I do at the local Cadillac dealership. Never needed to go to Chrysler Corporate with a problem. GM Corporate while being courteous has not resolved the cruise control issue and have shown little interest in follow up. My experience on balance with both the Cadillac and Chrysler products has been good and would own either car as a future vehicle.
Addicted to Northstar power anyhoo...........
I wish my plow truck would last as long !
De Ville which is a fine vehicle. I feel pretty much the same as Boomer that the cruise glitch is not enough of a problem to spoil an overall good experience with the car.
But in my neck of the woods NY a 04 base can be had for around $24,xxx.
A heck of a buy for a current year vehicle.
My 03 base had a package and discount and contained sunroof, bun warmers, bose, chromies, pearl paint and a few other goodies.
Forgot the name of it. My 1st Caddy with bun warmers.......Sure nice in these cold NY winters !
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No DTS here. The "boss" likes that 60/40 full front seat so her little hair bag doggie can be next to her !.........LOL !!!!
Me and the kids can ride in the trunk for all she cares when we make her mad !
The DTS has the split bucket type seats and console. Not to mention 25 more hp ~!
Those N-stars purr at 100 mph !