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  1. 2004-2007 CTS-V Performance Mods
    I have a 2006 cts v (LS2 243 heads) and I was looking for advice on supporting mods for a recently done rebuild. The engine was just rebuilt and has a TSP V4 torquer cam in it. The heads are stock as well as the intake and it has kooks long tube headers. I am currently on a base tune until it is...
  2. Seville and Eldorado Forum
    Maybe someone can advise me where to find connector to connect return fuel line (5/16, copper) with the plastic "plug-in" type connector. Photos attached, the metal bit marked with red arrow.
  3. Escalade, EXT and ESV Forum - 2007-2014
    I have an '08 Escalade that I've have for a few months. Since I bought it, it has had a P1175 code and every third start or so, it would have a long crank time and a fuel smell. It has ran fine though. Today while driving on the freeway, it bucked a few times and slowly started doing it more...
  4. 2014-2019 CTS General Discussion
    I have a problem about my car fuel consumption, now it is nearly 18~19 liter / 100km. Before the problem it not more than 13. Last month I changed my exhaust vvt solenoid and cleaned the intake vvt solenoid to clean the engine error light indicator. Engine light stoped but my fuel consumption...
  5. 500, 472, 425, 368
    Hi all, I bought a hearse locally in Sacramento that was “a runner” but when I got it home and popped the hood there were so many unhooked vacuum lines, spark plug wires, electrical connections, etc. So now I’m trying to figure it all out and get her back on the road again. But I’m coming up...
  6. ATS General Discussion Forum
    So, I have a 2014 ATS 3.6L with less than 30k miles on it. Recently did the full service. Nothing wrong with the engine and transmission as per my mechanic, but I'm getting really bad mileage only 15mpg on mixed driving. If I do all highway, then I can maybe push it to 20 mpg. Any ideas why I...
  7. The SLS I thoroughly loved and gladly let go

    and the 06 300 I replaced it with, one owner 157K miles $4020 all in out the door, as opposed to $425 a month for the first one. Same color even, just Limited instead of Touring. In January it will be 5 years, 22K miles, only repair alternator earlier this year and new front pads on Halloween.
  8. SRX 1st Generation Forum - 2004-2009
    Hello, I have a po458 code so I thought I would change the purge solenoid and reset the codes but after I did that I still had troubles with fueling up and the engines dying on me what should I do or check?
  9. 2001 Cadillac Deville Base Modified

    2001 Cadi4.6Ld air Deville Base 4Door Sedan. 32 Valve 4.6L Northstar V8. 103,500 miles. Stock 275hp. Current Dyno before mods - Avg 268hp. Current Dyno after Mods - Avg 326hp Ram cold air intake. Hi flow cats. Duel single chamber straight through performance mufflers. Spitfire performance tuning...
  10. CTS First Generation Forum - 2003-2007
    I have a 2004 cts, I bought it from an elderly couple they said it occasionally had some problems of course the problems got worse within a week of owning it. They had a dealership in town “fix” it by replacing the throttle body. The day I got it back expecting it to be fixed it was not. Here’s...
  11. Seville and Eldorado Forum
    I bought a 2000 Seville and did a HG replacement. Once it was all back together and good to go I made sure to add 5 gal of premium to the tank so I knew it had fresh gas. (the gauge was low/empty when I bought the car and wasn't sure how long it had sat...) I was taking it for a drive (bout...
  12. Seville and Eldorado Forum
    I have an 85 Cadillac Seville with the 4.1 V8. The engine seems to hesitate when accelerating and does not seem to have the same get up and go as it used to. When its been running for a while it has problems restarting if shut off. Through testing ant such we found that we were only getting 5-6...
  13. 500, 472, 425, 368
    Just thought I would pass on a possible fix for repeated blower relay failure on late 70's Devilles. After looking through the posts on here I see that others are having this problem. The only fix I have seen so far is to replace the blower motor and/or carry spare relays which I have tried. My...
  14. 2004-2007 CTS-V General Discussion
    I'm going to be doing the muffler delete on my stock exhaust (with cutouts before the resonator) and have been searching for a great set of tips to go with it... I'm looking for 4" double wall slant cut tips, but most of what i find has an inlet size of 2.25".... does it matter if the exhaust...
  15. Northstar Engines and System Technical Discussion
    On my 95 Eldorado, I was getting code P119. I did the PCM override test #4 and found out #3 fuel injector was not working. I replaced injector and car was running fine. I just code that code again P119. I did the test again and found out it's #3 again. I used a long screw driver and place one...
  16. CTS First Generation Forum - 2003-2007
    Does anyone have experience with the Nexen CP641 225 50 17 Tires? The tires are at www.tiredeals4less.com/NEXEN_CP641_C901.cfm The tires have a 55,000 mile Tread Warranty, and are 94V-Rated, which would fit my needs. Actually, I rarely drive at speeds over 149 MPH , ha ha. The price is...
  17. CTS First Generation Forum - 2003-2007
    Anyone have experience on tire replacement from the OEM bridgstones and upgrade size. Or is it better to stay OEM? Thanks
  18. FWD DeVille 1985-2005, Fleetwood, and 60 Special
    OK, I know this is a bit crazy (or asking for trouble), but I'm planning to drive Cruella, my '91 DeVille from Oregon to Iowa for the big Midwest meet in May. It looks like my Dad is going to fly up from Texas to make the trip with me (I tempted him with a stop at my sister's house in Omaha to...
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