joeb Posted April 21, 2009 Report Share Posted April 21, 2009 I did my HG's about 8k miles ago. car runs ok except for a slight miss at idle but it comes and goes. I mentioned before that I can barely spin my tires at start. not that you should be driving that way but you would think a NS could smoke the tires. I drove a 2000 bonneville SSEi this weekend with 70k miles and it spun the tires with ease. so thats what burning rubber smells like? it had fairly new high po tires too. from 30-50mph the caddy had more pickup but I think the bonne had lower gears. maybe 2.9 final drive ratio. i wish i could pull off the valve covers and double check the timing marks but balancer has no timing mark. i would have to find TDC to verify crank position or take off the front cover. hard to do in a car. Link to comment Share on other sites More sharing options...
BodybyFisher Posted April 21, 2009 Report Share Posted April 21, 2009 Hmm, you have a 96 Joe, let me hook up my Autotap to my car this weekend, and see what ignition readings I get, I think the is a spec for degrees advanced, maybe that would provide some insight. Could the engine be retarding for some reason?, the knock sensor would do that... just thinking here Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
joeb Posted April 21, 2009 Author Report Share Posted April 21, 2009 i know the motor is a 4 stroke/cycle so the cams spin 1/2 crank speed. crank is at 12 o'clock and cams are also at 12. spin crank 360 and all cams should be at 6 oclock. it would be cool if the cam covers had a little viewing window. Link to comment Share on other sites More sharing options...
davidson5125 Posted April 21, 2009 Report Share Posted April 21, 2009 My eldorado etc will only spin tires with traction on believe it or not manually in first gear it will spin them all the way to third gear at 60 MPH if you manually turn off the traction control to try to do a burn out the pcm commands 2nd gear even if you select first. Are you turning off the traction control if so that is your problem it starts in 2nd gear but word of advice don't treat your car this way when wheel spins on front wheel drive it can severely damage transmission. Link to comment Share on other sites More sharing options...
BodybyFisher Posted April 21, 2009 Report Share Posted April 21, 2009 Good answer, where I do have problems with wheel spin is on wet ground, and the traction control kicks in Where I was focused is the reduced power in the 30 to 50 mph range. That could be due to winter fuel mixes, we have had some experience that. What kind of fuel are you using? Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Texas Jim Posted April 21, 2009 Report Share Posted April 21, 2009 Where I was focused is the reduced power in the 30 to 50 mph range. That could be due to winter fuel mixes, we have had some experience that. What kind of fuel are you using? Actually Mike...go read it again. JOEB said that 30 to 50 the Caddy ran BETTER then the Pontiac. It is 0 to 30 where it won't run. No low end torque/power. davidson5125 also makes a good point about the traction control. If JOEB is turning off the TC..it will start in 2nd instead of first. Link to comment Share on other sites More sharing options...
BodybyFisher Posted April 21, 2009 Report Share Posted April 21, 2009 True, if traction control is off its starting in second Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
joeb Posted April 21, 2009 Author Report Share Posted April 21, 2009 TC is left on. we took the bonne to the auto auction in michigan. left it there. my son just bought another grand prix GTP a few weeks ago. have not driven it yet. i did pop off the front valve cover. both cams are aligned to each other. but whether they are in sync with the crank is another question. i assume they are. MN fuel is 10% ethanol. does not change from summer to winter as far as i know. Link to comment Share on other sites More sharing options...
BodybyFisher Posted April 21, 2009 Report Share Posted April 21, 2009 I just went for a ride, and took the traction control off, the DIC stated Traction OFF the entire time, I was able to spin easier but the ground was wet also Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
JohnnyG Posted April 22, 2009 Report Share Posted April 22, 2009 Summer/Winter Gas? Where's Myth Busters when you need them? There is absolutely no difference in the BTU content, ethanol content, Octane rating, additive concentrations, or "power" produced by gasolines made in the summer vs. the winter. There is only one small difference, which has absolutely NO effect on engine performance, and that is RVP. RVP stands for Ried Vapor Pressure, and it can be best "visualized" by a closed can of gasoline sitting in your hot tool shed. If it was filled in the winter, then put in the shed until summer, that can will get to about 15 psi, if it were filled in the summer, then put in the shed (also in the summer) it will get to roughly 9 psi. Summer gas (at 9 psi RVP) used in the winter(COLD) will not start as easily. Winter gas, used in the summer(HOT) will evaporate quickly, causing smog. (we don't want that). As to ethanol content. Some areas of the country, mostly in the south like Atlanta, can consider 15% ethanol. I think this is being done mostly to increase oxygenate content, and lower smog. But just to give you all some inside info, there are "feelers" out there to increase overall ethanol content in gasoline to 20% across the board. Good for the environment, bad for fuel economy and power (spelled BTU). Never underestimate the amount of a persons greed. Link to comment Share on other sites More sharing options...
JohnnyG Posted April 22, 2009 Report Share Posted April 22, 2009 By the way Joeb, you have a 9Y engine in an STS, it has no low end torque. The Deville, on the other hand has a fair amount. I had an STS for a while (wish I still did sometimes) and know about how it felt (torquewise) compared to my '08 DTS. The difference is very noticeable, even though they are basically the same engine. Now, get that puppy wound up, and LOOKOUT! Never underestimate the amount of a persons greed. Link to comment Share on other sites More sharing options...
BodybyFisher Posted April 22, 2009 Report Share Posted April 22, 2009 Or is that Summer and Winter AIR for your tires? I was under the impression that the removed the ethanol from the gas in the summer Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Texas Jim Posted April 22, 2009 Report Share Posted April 22, 2009 I was under the impression that the removed the ethanol from the gas in the summer Not down here in Texas. If the area requires ethanol...it is 10% ethanol year round. There are still a FEW places in Texas that does not require ethanol. I can tell a definite difference in the way my car runs on REAL GAS vs 10% ethanol. 10% ethanol also makes a 5% to 10% difference in my fuel mileage. Link to comment Share on other sites More sharing options...
joeb Posted April 22, 2009 Author Report Share Posted April 22, 2009 i don't think the torque number difference is huge. the STS has 3.7 gears while the SLS are about 3.3? not sure about the deville. and what is the weight on the front tires between the cars? wheelbase and weight transfer due to different springs/shocks can also make a difference in how the cars launch. i admit i use regular gas too. gulp. would premium gas make less knock and affect timing? maybe. Link to comment Share on other sites More sharing options...
Texas Jim Posted April 22, 2009 Report Share Posted April 22, 2009 Now, get that puppy wound up, and LOOKOUT! I know what you mean. After 3000/3500 rpm...it sings to me. From there to the 6,800 redline..it sure does make pretty music. Link to comment Share on other sites More sharing options...
JohnnyG Posted April 22, 2009 Report Share Posted April 22, 2009 don't think the torque number difference is huge. the STS has 3.7 gears while the SLS are about 3.3? not sure about the deville. and what is the weight on the front tires between the cars? wheelbase and weight transfer due to different springs/shocks can also make a difference in how the cars launch. i admit i use regular gas too. gulp. would premium gas make less knock and affect timing? maybe. What are you trying to do? Invent a problem? I'm telling you from experience that it is rather hard (not impossible) to burn rubber in an STS from a dead stop. And from the replies on this board, there are many reasons for that. The gearing is different, for sure, which KINDA makes up for the difference in torque, in other words, your NOT SUPPOSED to feel it. Your cams are fine, your weight distribution is perfect, your springs and shocks are OK, and don't worry a bit about regular gas. Just drive the car, beat a few rice burners (preferably with full fart can package) and enjoy the car! Take it from me, you'll miss it someday. Never underestimate the amount of a persons greed. Link to comment Share on other sites More sharing options...
Ranger Posted April 22, 2009 Report Share Posted April 22, 2009 Or is that Summer and Winter AIR for your tires? I was under the impression that the removed the ethanol from the gas in the summer Not in Ill. either. Link to comment Share on other sites More sharing options...
joeb Posted April 23, 2009 Author Report Share Posted April 23, 2009 your probably right. there is nothing wrong with my car. i did read that the bonne has 280lbs torque at 3300rpm while the sts is 300 at 4200rpm. maybe the bonne has a lower diff gear and can just spin the tires faster off idle. once you break the wheels loose, you can spin all day. Link to comment Share on other sites More sharing options...
JohnnyG Posted April 24, 2009 Report Share Posted April 24, 2009 your probably right. there is nothing wrong with my car. i did read that the bonne has 280lbs torque at 3300rpm while the sts is 300 at 4200rpm. maybe the bonne has a lower diff gear and can just spin the tires faster off idle. once you break the wheels loose, you can spin all day. I think that's a better attitude! But if you ever do find that you have a problem with that car, read the codes, post them here, and many of us will wrack our brains trying to figure out what's going on. Fair enough? Never underestimate the amount of a persons greed. Link to comment Share on other sites More sharing options...
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