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HI there, Your P1571 is what is causing the code, BUT, its telling you that the PCM is looking for a signal and its not seeing it from the EBTCM. If you have a bad ground source or something isnt connected, this could set. Remember, the EBTCM or ABS controller is mounted to the front subframe...

HI there, Start with checking your resistance on your fuel injectors. 16.5 ohms before running vehicle when cold. Allthebest, Paul

absolutely!!!!!!

Hi there, There is a huge difference between mismachining and valve guides wearing out. Nevermind the fact that the 2 can correlate based on how hard the vehicle is driven. In truth, having 2 mismachined heads myself, there was NO valve guide wear. There was a audible tapping and there is...

CHECK IT OUT. The movers and shakers behind the new 2014 Corvette - Autoweek 41 seconds in, and who do you think is photographing the interior? I LOVE IT. Especially the look on your face! Allthebest, Paul

e10/e15/e85, EW HI there, Lets look at this from a technician point of view. Aside from the mutual understanding that ethanol in any form reduces fuel mileage and increases the corrosive nature of the fuel inside your fuel supply system, there are other factors that need to be addressed...

HI there, Any warning messages like "service column lock" or 'pull key, wait 10 sec" ??? Sounds to me like your battery maybe weak. Turn on your car, but do NOT start it, what does your digital voltage gauge read??? Allthebest, Paul

HI there, To be clear, GM 6094 is a LOWER quality specification than the 4718M. 4718m IS still THE CORRECT specification for the engine oil in all Corvette from 92 LT1 and up, 93 LT5 and up to current date. 6094 was introduced as a lesser oil for other vehicles other than Corvette, pourpoint...

HI there, To Macs point, I think that with new technologies comes different drivers and different results. A few months back, I did a podcast specifically on the new LT1 and C7 features. We discussed in depth the different technologies that will be coming. I really looked at it from my point...

HI there, You said POWERTRAIN, how about all of it???? The level of systems integration and how it all works together is what I marvel at. Its set up to make a driver MUCH better in the Corvette than any other performance car. Especially the electronic limited slip differential, which allows...

HI there, I doubt GM is going to offer harnesses as a dealership installed option, it wouldnt make sense from a liability standpoint. The legality standpoint seems much too great in my opinion. But its certainly obvious that they wanted to be able to make it easier to install them as owners...

Hi there, Chassis ears are the most definitive way to accurately determine source of rear end noises. Your certified technician will be able to use these tools to determine if its the transmission, differential, hub bearings or something else. Normally, my first course of action after...

Hi there, The key to all of the rear differential repairs is accurate service procedures, just as stated by Hib. However, the leak position is always the key. Is it from the area between the transmission and the differential housing, the bottom of the side cover seam or is it coming from the...

HI there, Personally, having serviced both systems, the following is what I have noticed. FFS fuel systems are very DIFFICULT to work with. The largest reason I see for the cracks in the FFS tanks is the FORCE exerted to seat the 'twistlock' connections at the tanks. The new design tanks did...

HI there, Entire starter, ACDelco and utilize the torque specification on that S terminal of 35 in lbs once CLEANED! YES, that is INCH LBS. Allthebest, Paul

Fuel tank leaks, 2 DIFFERENT SYSTEMS! HI there, If I may, this discussion is covering 2 completely DIFFERENT fuel systems and I believe that this is where the problem lies. In midproduction 2003, there was a complete fuel system design change, called FFS. From production 111542 in 2003...

HI there, From the factory, I have not seen one be OUT of alignment. It is only when a pothole is hit or really sharp bumps occur that the alignment is thrown off. I usually raise the torque value on the lower control arm cam bolts by 20 ft lbs so that I do not have to worry about them being...

Hi there, Even at the dealership level, we cannot access deployment data. A special reader is used and an independent party downloads the information. Allthebest, Paul

HI there, The "black boxes' are actually silver for the most part and constantly monitor this data. When and ONLY when the airbags deploy in an accident is the data actually saved for retrieval later on. The control module is called a sensing and diagnostic module and its ONLY job is to...

HI there, The key with wheel alignments, ride quality, and correct handling when driven quickly is that nothing is missed. Anything can happen, springs settle, bushings move or wear out so trim height checking only takes few minutes but is critical to not forget it. Allthebest, Paul