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HI there, Your 'source' is not accurate. The fact is that the 8L90 is easily able to take the 650 LT4 without issue. I have 4 here in my service stable and every one is running track usage without issue. Yes, there have been programming updates for the learning capability of the unit, but as...

Hi there, As a sidenote to the installation of C6 ZO6 suspension components on a C5. One thing to consider, the travel of the suspension of the C6 is LONGER than that of the C5. In some cases, you can bottom the shock absorbers and create an upset chassis. Alignment is also very key on C5...

LET US BE VERY CLEAR. In no document, anywhere in either printed manuals or on SI, did GM ever state to do a wiggle test on the car, EVER. You were instructed to remove the cylinder heads, disassemble the heads and perform a hole gauge to valve stem measurement comparison. The stem to guide...

Hi there, Honestly, the diagnostic trouble codes will tell you all that you need to know. But here is a simple test to see if the BCM is causing the issue. When this occurs, does both door windows and locks work?????? I know it seems simple, however, if they do NOT work you probably have a...

HI there, LT4, no matter being built at PBC or Tonawanda, will be assembled to the exact same specifications no matter what. Honestly, there is no difference. Allthebest, Paul

I credit your honest revision and constant research on this subject matter. And I do applaud your ability to keep an open mind. Allthebest, Paul

Battery specs dependant on a few things. HI there, Under normal circumstances, like C5, there would be only 2. But in this case, you do have options. If you were to look at 2005, this was the first year of C6, this particular battery was an 86 class battery rated at 110 reserve capacity and...

HI there, Yes, but this is NOT only on Corvette. Generation 10 modules have been problematic at times across the GM line. Thank the Vendor for this one. Some modules have an issue, some do not. As for the rest, remember, PDR, ONSTAR, NAV and all the modules work on the MOST communications...

Hi there, THINK SIMPLE! I can tell you that connections from battery to electrical centers are common issues when people do not install batteries correctly. Loose terminals, changes in wiring when technicians service vehicles is rampant. Clean battery terminals, torqued to minimum of 71 in...

HI there, Be aware, some have the recall, others are covered by a special coverage for the repair. Please read your letter CAREFULLY so that you know which you have. Allthebest, Paul

HI there, Just to add to what GMJunkie has stated, normally, you will always find that it is your master cylinder. When you have NO fluid leakage, the seal is usually bypassing pressure in the master cylinder, creating the condition. You have an 11mm bleeder screw to evacuate fluid at the...

I stand behind every single thing I have said. Anything can be picked apart on the internet, but when you work on these cars every day, serve Corvette every day, you see much more than any internet article or press release or anything else can convey. This is my last statement on this website...

This is now where I get involved because now you are talking complete speculation! This quote is absolutely assumptive. In fact, there have been some cases of premature guide wear in engines with far less than 10,000 miles on them, but those engines demonstrated symptoms, such as excessive...

Hi there, According to that information, its not the same converter. They replace both sides, oxygen sensors and other things. I can definately relate to some of this, but it is NOT the same converter every time. You went 3 years between converter changes and I can tell you first hand, fuel...

HI there, The question posed was why was one over the other in the recommendation. ACDelco, which is not part of GM recommendations on these pages, is suggesting to sell platinums over iridiums at a lower cost. However, Iridiums will last much longer against fuel chemicals and combustion...

Hi there, The P2534 was for low system voltage to the transmission. Make CERTAIN everything in the fuse block is correctly torqued. If you miss anything, this can create the condition. Allthebest, Paul

HI there, Well, as LLC5 has stated, without any diagnostic trouble codes or symptoms to determine failure, theory is all you have. #1, OEM converters when they fail, there is ALWAYS a reason behind it. #2, I have NEVER EVER had a converter fail from GM without something CAUSING IT. #3, if...

Hi there, P0449 is an electrical failure. My question is what are we talking about? Your pickup truck or your ZO6 ? I mean, which is it? The part number for the truck is not the same as Corvette. A simple electrical resistance test of the Vent solenoid can isolate your condition. Just...

Hi there, 2005 is a stand alone year in the US, BUT this system is out there on other years for export versions. This being said, you may need the actuator itself. The key with this is actually the sound of how it moves in and out. If the motor sounds like it is binding or moving through...

Hi there, Z51 vehicle do NOT utilize a center section deflector below the radiator. Only base coupe and convertible do WITHOUT Z51. Allthebest, Paul