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2005 sts Cadillac
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5 Posts
Discussion Starter #1
Can someone help me my sts 05 v8 is not going forward while In drive and not going backwards while In Reverse I put it on scanner it reads p00174 and something else but it says it’s a vaccumn leak and it’s not getting enough gas
 

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08 STS 1SG HUD ACC F55 AWD, 08 STS 1SG Platinum HUD ACC F55 RWD
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346 Posts
See the post below yours 2010 STS ... and tighten the intake bolts as stated in that post(use torque wrench). Also check the vacume hose to the very back center of the intake manifold (very tight spot in a recess in manifold). Check all sides of the rubber tube at the front of the intake manifold(between IM and throttle body). Sometimes you can find leaks by spraying flammable brake cleaner on joints and suspected spots. Sometimes you need a smoke generator to find the leaks. Those are the most common. Any others I have forgotten guys? Good Luck.
 
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