Addicted To Boost Posted June 27, 2008 Author Report Share Posted June 27, 2008 I love it! I can't wait to see what she will do once its broken in! So far, I have only been driving it up to 1/4 throttle and not letting the boost gauge go much past zero. How long do you guys think I should give it for breaking in the new valvetrain? I have driven it 76 miles so far since I got it running. Quote Link to comment Share on other sites More sharing options...
bullet Posted June 28, 2008 Report Share Posted June 28, 2008 I love it! I can't wait to see what she will do once its broken in! So far, I have only been driving it up to 1/4 throttle and not letting the boost gauge go much past zero. How long do you guys think I should give it for breaking in the new valvetrain? I have driven it 76 miles so far since I got it running. I'd say at least 500 miles minimum. 1000 if you want to play it really safe. Quote Link to comment Share on other sites More sharing options...
Addicted To Boost Posted July 1, 2008 Author Report Share Posted July 1, 2008 Update I now have ~250 miles on it. Yesterday I put in new AC Delco R42LTS plugs gapped at ~.028-.030" and replaced my O2 sensor with a new AC Delco O2. While I was taking the old plugs out, I did a compression test on all the cylinders and they are all right about 160 PSI. What kind of compression should these engines have? I'm trying to sort out the last couple issues the car has right now, and a new one popped up a couple days ago. As soon as I start up the car, there is a whining/groaning noise coming from the drivers side of the car.. it almost sounds like it is coming from the turbo. The turbo is fairly new, replaced in 2006 and has ~6,000 miles on it. I know it is probably hard to diagnose this noise just from the above info, but any ideas on what could be making this noise? Also, another thing I have noticed is: as soon as I start the car, the intercooler fan starts up right away and runs constantly until I shut the car off. I have no codes and I am now running Kenny's Hot Tune chip. Is the chip programmed to make the IC fan run constantly? Quote Link to comment Share on other sites More sharing options...
Addicted To Boost Posted July 2, 2008 Author Report Share Posted July 2, 2008 bump Quote Link to comment Share on other sites More sharing options...
mfewtrail Posted July 2, 2008 Report Share Posted July 2, 2008 Nick, have someone else start the car for you so you can pinpoint the groaning noise better. If nobody answers your IC fan question(since a few guys have the same chip), I would contact Kenny to ask him about it. Quote Link to comment Share on other sites More sharing options...
GutlessSupreme Posted July 2, 2008 Report Share Posted July 2, 2008 The noise description sounds typical of a constantly running PM3 pump. Does it only do it when the car is running? Or whenever the key is "on?" x2 on asking Kenny about the fan. Dumb question but you didn't leave a paper clip in the ALDL connector did you? as you would do for checking codes? That makes the IC fan turn on. Quote Link to comment Share on other sites More sharing options...
krenzy Posted July 3, 2008 Report Share Posted July 3, 2008 Just pull the fuse lol. Quote Link to comment Share on other sites More sharing options...
Addicted To Boost Posted July 3, 2008 Author Report Share Posted July 3, 2008 The noise description sounds typical of a constantly running PM3 pump. Does it only do it when the car is running? Or whenever the key is "on?" x2 on asking Kenny about the fan. Dumb question but you didn't leave a paper clip in the ALDL connector did you? as you would do for checking codes? That makes the IC fan turn on. My PMIII works perfectly fine, and the pump shuts off. The car only makes the noise while running and it is very loud on the drivers side of the car. If I take a screwdriver and put it on the exhaust housing of the turbo, I can kinda hear it. It makes the groaning noise on and off about every 2 seconds. It almost sounds like a dying tranny sounds, how it groans/whines, only louder.. There is no paper clip in the ALDL connector. I'm thinkin it is programmed into the Hot Tune chip to do this, hopefully someone else who has the chip will chime in to confirm or deny this. Quote Link to comment Share on other sites More sharing options...
bullet Posted July 4, 2008 Report Share Posted July 4, 2008 I posted on TGPF that it could be the pump, but I guess not... Hope it's not the trans, just spit ballin but could it be a bent Turbo shaft? probably not though. Quote Link to comment Share on other sites More sharing options...
GOT2B GM Posted July 4, 2008 Report Share Posted July 4, 2008 The IC fan will come on right away in summer weather with the hot tune chip. It does shut off however, above 55 mph. In the colder months the IC fan wont run until 5-10 mins after startup. Quote Link to comment Share on other sites More sharing options...
Addicted To Boost Posted July 4, 2008 Author Report Share Posted July 4, 2008 The IC fan will come on right away in summer weather with the hot tune chip. It does shut off however, above 55 mph. In the colder months the IC fan wont run until 5-10 mins after startup. Good to know. Thanks How would I test to see whether or not the turbo shaft is bent? The turbo has ~6,000 miles on it, has no shaft play and spins freely. Quote Link to comment Share on other sites More sharing options...
bullet Posted July 4, 2008 Report Share Posted July 4, 2008 How would I test to see whether or not the turbo shaft is bent? The turbo has ~6,000 miles on it, has no shaft play and spins freely. if it spins freely I dont think that would be the problem then... to be more specific how long does the "groaning" noise last from the moment it starts? like when is there no noise? Quote Link to comment Share on other sites More sharing options...
Addicted To Boost Posted July 4, 2008 Author Report Share Posted July 4, 2008 It starts making the noise within 5 seconds of starting the car, then it makes the noise on and off about every 1-2 seconds. It will do this the entire time the car is running, it doesn't go away. The only time I can't hear it making the noise is when I am above ~2,500 RPM. Quote Link to comment Share on other sites More sharing options...
krenzy Posted July 4, 2008 Report Share Posted July 4, 2008 Possible that the cooling fan is rubbing on something? Quote Link to comment Share on other sites More sharing options...
GOT2B GM Posted July 5, 2008 Report Share Posted July 5, 2008 make a video of the sound Quote Link to comment Share on other sites More sharing options...
bullet Posted July 5, 2008 Report Share Posted July 5, 2008 make a video of the sound X2 Quote Link to comment Share on other sites More sharing options...
Addicted To Boost Posted July 6, 2008 Author Report Share Posted July 6, 2008 Alright I took a few vids of it today, but my cell has kinda shitty sound quality. While doing this, I noticed something.. I kneeled down next to the drivers side front wheel and the noise was pretty loud here. Sitting there, the noise almost sounded like an on and off grinding noise.. Kinda sounds like the turbo to me.. What do you guys think? Quote Link to comment Share on other sites More sharing options...
Garrett Powered Posted July 6, 2008 Report Share Posted July 6, 2008 I would take off the filter and look at the wheel spinning in there and see if it is catching. Quote Link to comment Share on other sites More sharing options...
Addicted To Boost Posted July 6, 2008 Author Report Share Posted July 6, 2008 I did, it looks to be spinning fine. Quote Link to comment Share on other sites More sharing options...
TGP5sp90 Posted July 6, 2008 Report Share Posted July 6, 2008 Ooohhhhh its trying to tell you something, let me translate it for ya,Take me to a specialist please. I really can't tell by that video Nick. Sorry. Quote Link to comment Share on other sites More sharing options...
mfewtrail Posted July 6, 2008 Report Share Posted July 6, 2008 Nick, get a cheap mechanic's stethoscope from an auto parts store(about $10 max) and pinpoint the area it's coming from. Quote Link to comment Share on other sites More sharing options...
Addicted To Boost Posted July 6, 2008 Author Report Share Posted July 6, 2008 I'll look into it more tomorrow. Heres the other vid I took: Quote Link to comment Share on other sites More sharing options...
krenzy Posted July 6, 2008 Report Share Posted July 6, 2008 The first vid makes it sound like you need an exorcism. I really can't tell. Worse case scenario, I know where you can buy an '89 TGP! Quote Link to comment Share on other sites More sharing options...
Addicted To Boost Posted July 7, 2008 Author Report Share Posted July 7, 2008 I'm really leaning toward bad turbo now. I will be bringing it to the local GM dealer tomorrow and have a mechanic listen to it (so many turbodiesel trucks around here, they should know what a bad turbo sounds like). I have a couple other issues with the car right now also. 1. If I give it WOT, the car will rev until it hits fuel cut (6,212 RPM) before it ever shifts. I have to let off the gas for it to shift. This happens in any gear, whether it is the 1-2 shift or the 2-3 shift. I have adjusted the TV cable a few times now with no change. I should also add that last year, the car had no problem shifting at WOT; last year I hooked up a scangauge and verified that it shifted at 5,200 RPM at WOT. 2. Whenever I put the car into reverse, it SLAMS into reverse really hard. With it doing this, it does NOT slam into drive. It shifts into drive nicely. I have made sure that all my vacuum lines are connected and there are no leaks. What do you guys think? Quote Link to comment Share on other sites More sharing options...
GOT2B GM Posted July 7, 2008 Report Share Posted July 7, 2008 bad vacuum modulator? Quote Link to comment Share on other sites More sharing options...
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