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Recent content by 97gpl36

  1. 9

    headlights flicker and pulse.

    Does anyone know what would make the headlights (most noticeable)and other lights on my 97 GPGT pulse and flicker? This has been happening for about a month now.The alternator was checked a few days ago,but the battery light came on last night,on the way home.I've read the solution to this...
  2. 9

    Fuel enable circuit 229-Polarity

    Hey guys,I,m wanting to switch out the pcm on my 97 GT,I have an extra 97 pcm from a regal that has the same service numbers. The problem is that the buick pcm has the security enabled and my gt has no factory security. Does anyone know what the polarity is on pin 70 in blue harness when fuel is...
  3. 9

    Fried PCM

    I was scanning my car last night trying to find a problem,then noticed my ltft's were spiking at +36. Showing no misfiring cylinders,scrolled down,primary misfiring cylinder-15,secondary misfiring cyl,-15. I thought that the highest ltft you could get was 16,and a big WTF? for the number 15...
  4. 9

    Upper intake explosion.

    Last Friday afternoon my UIM literally exploded when I tried to start the engine. I had removed and disassembled the TB,sprayed some brake clean around the opening of the UIM to remove coolant residue,wiped the gasket surface and re-installed the TB 30-45 minutes later. Then when I tried to...
  5. 9

    MAF killer

    Does anyone have an idea as to why my 97 GT keeps killing the MAF? I just installed a new one from Borg Warner last week and it's already throwing a PO102,the engine was dying right after start-up when I installed the new MAF in the parts store parking lot. Sometimes unplugging and starting will...
  6. 9

    new 02 from Bosch

    Sorry if i'm posting in the wrong forum,but how does a guy supposed to feel when he buys a new 02S1,and the damn thing sits on 483mv from the start? 58*-198*, does not matter,stft @ 20 with ltft not far behind. Maybe this should have went to the rant forum.Anyone else had problems running Bosch...
  7. 9

    4T60e shreds planetary gears

    Rebuilt 4t60e in 97 gp gt about 1600 miles ago,differential looked good and was tight with fresh spider gears. The loud roaring sound that resembled a really bad wheel bearing turned out to be shredded planetary gears on the differential,my foot is heavy,but I would appreciate any other...
  8. 9

    4T60E-Loud popping sounds,then no gears

    Rebuilt 4t60e about 1600 miles ago,everything seemed to be normal except for roaring noise assumed to be coming from front hub bearing. When leaving a traffic light last night there was a loud popping and chunky sounding noise coming from drive train,at the same time the noise was heard the car...
  9. 9

    Cracked throttle body

    Hey guys,I was wondering if anyone ever experienced a cracked TB.My ltft likes to hang around 16 at idle,still can't find any external vac leaks.Almost 10,000 miles on rebuilt engine with metal lim gaskets and new uim.I've heard of the TB developing cracks at the "Y" fitting in some of the...
  10. 9

    Rebuilt 4T60E,No shift from 1st

    I recently rebuilt my 4t60e transmission,since this was my 1st attempt at such an intense project I used the GM service manual along with the junior shift kit instructions,triple checked everything (I thought),and replaced worn out hard parts. Reverse and 1st are normal and pull great but when...
  11. 9

    KR at 1400-2500 rpm

    I'm still having 12-16 degrees of KR when leaving a stop at slow rates of speed (granny takeoff),but when accelerating quicker the rpm move through the KR zone (1400-2500) sometimes only causing up to 3*KR. While travel at 78 mph,KR will occasionally pull 12-16 of timing. The weird thing is when...
  12. 9

    Low RPM KR

    I finally found part of my PO171 problem by replacing my TB gasket. UIM and rebuilt engine only have 4K miles.LTFT is back down to 2 and -3 at idle with A/C on,still have PO300 but I,m thinking the .531 lift Comp Cam has something to do with that. After replacing knock sensors I am still getting...
  13. 9

    checking for internal vacuum leaks

    I'm still getting PO300 and PO171 codes with LTFT 16 at idle. Replaced all rubber vac lines and checked sensors and switches for leaks,everything seems to be sealing well,including the metal LIM gaskets with almost 1000 miles on them. After searching for leaks with ether,TB-cleaner and propane...
  14. 9

    phantom KR without knock sensors

    Good day to everyone,I was wondering why I'm getting up to 16* KR between 1700-2500 RPMs. I can feather the throttle and get past it sometimes,or just nail it from stoplight to get rpm higher and hope the cops aren't around. Replaced knock sensors even though they were doing their job. KR was so...
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