compression test 5.3 vortec|5.3 Vortec Compression Test: Specs, PSI, and Numbers

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How To Do A Compression Test (GM 4.8L, 5.3L, 6.0L)

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I have completed the compression test on my 5.3L. The engine will soon turn over 170,000 miles. The values are Cylinnder, 1st crank, and .Discover How Much Compression Should a 5.3 Have and Why it Matters. Learn how to test compression, interpret results, and troubleshoot. Testing the engine compression on your Chevrolet or GMC 4.8L, 5.0L, or 6.0L engine is not hard to do. A compression test will help you to determine the health of your engine by measuring the pressure of the air that . #1

STEP 1: Multiply the highest compression value by 0.15 (this is the decimal value of 15%). STEP 2: Round the result to the nearest one (for example: 25.6 would become 26). STEP 3: Subtract the result (the number that was .

I am going to be performing a compression test on my 2010 Silverado with 5.3 to try and chase down a misfire. I was just wondering what steps I need to take before performing .I have a 99 Chevy Silverado with a 5.3 Vortec engine. Problem is dat cylinder 5 has no compression at all (also no build In this tutorial I'm gonna' explain how to do a compression test on the 4.8L, 5.3L, 6.0L V8 engines of the Chevrolet Express and GMC Savana van. I'm also going to explain how to interpret to your test results so that you can . ALL THE VIDEOS IN THIS SERIESGM Vortec 5.3 Engine Vacuum & Compression Check, Flowmaster 50 series LS vid 1 - .

My tahoe recently started showing a misfire on cylinder 6 in my 5.3 liter vortec engine. I went through the troubleshooting steps, changed plugs, changed out the plug wires, coils, checked for spark to the plugs, and .

GM mechanic told me sounded like it was misfiring. Didn't want to drive to dealership for fear of washing out misfiring cylinders, so had it towed. Got a call and they say need to replace pistons! One cylinder has low-or-no compression and oil-fouled plug. GM’s 5.3-liter Vortec LS V-8 is a great performance bargain. We make it better with the right parts then finish with a 600-plus-hp supercharger test! . Compression also remained the same at 9. .You'll get one of two results: 1) The compression value will go up (from the one you recorded before). 2) The compression value will stay the same. Let's interpret your test results: CASE 1: The compression value shot up.This tells .

How To Do A Compression Test (2003

Fearing the worse, I grabbed the compression tester. All my other cylinders that are firing are 140 - 150 PSI on the tester, the one that is misfiring is 175. This was a dry test, I am assuming since that cylinder is not firing that it has oil buildup or something in it that is making it behave like a wet test. I will check that shortly. To get a little bit more compression, we opted to run the flat-top 4.8-liter pistons rather than the dished 5.3-liter slugs. The GM stuff uses a pressed fit rather than a floating pin, so Turn Key . To get the most accurate test results from your compression test, it's important that you test all 8 cylinders (and I hear you, it's gonna be a pain in the neck). . P0135, P0155 -Upstream O2 Sensor Test (1999-2002 GM 4.8L, 5.3L, 6.0L) P0135, P0155 -Upstream O2 Sensor Test (2003-2005 GM 4.8L, 5.3L, 6.0L) How To Do An Engine Compression Test. Solving a hard to find Misfire Condition. P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308. Testing the GM 4.3L, 5 .

static compression test, running compression test or cylinder leakage test may isolate the sticking valve. However, it is unlikely that any of these tests will isolate the sticking valve if the misfire only occurs while driving at specific conditions. The following suggestions may help determine if a sticking valve is causing this concern:

How Much Compression Should a 5.3 Have: 5.3L Compression Test. Multiple variants of the 5.3L have been produced over the years: LM7 – Basic 5.3L version with aluminum block and heads; L59 – Flex fuel E85 version of LM7 . Is the 5.3L Vortec reliable for forced induction and big power builds?GM originally made the 4.8 Vortec for dyno purposes with an electric water pump. 5.3 Vortec Engines for Utility and Heavy-duty Vehicles. General Motors developed the LMF engine and, by extension, the 5.3 Vortec engines used by utility and heavy-duty .

Vortec 5300 5.3L V8. Compression Test Help. Jump to Latest 3K views 0 replies . I am going to be performing a compression test on my 2010 Silverado with 5.3 to try and chase down a misfire. I was just wondering what steps I need to take before performing the test. The initial run of the Chevy 5.3-liter V8 comes in the third generation of Chevy’s small-block V8 engine. For marketing purposes, this engine is known as the Vortec 5300. As we mentioned before, it first became available in 1999. You’ll find this engine in the Chevy Silverado and Avalanche as well as the GMC Sierra. 5.3 LH6 engine misfire in cylinder 1 no nother codes. Compression 80 - 90. Mechanic indicates Wet compression test indicates no ring damage but it is unclear because each compression test on that cylinder yields different pressures. I'm thinking a loose or damaged lifter. I am not in a position to fix it now. Compression Testing and What You Can Learn From It - EricTheCarGuyHere is a video on performing a compression test on an engine to assess it's mechanical con.

How to do a Compression Test (GM 4.8L, 5.3L, 6.0L) -Part II-Dry Compression Test To get the most accurate result of the health of your Engine, you should do the Compression Test with a warmed up Engine. Why? Well because both the engine block and the pistons and rings will expand when heated and this will have an effect on your Compression . The Chevy 5.3 Vortec engine has steadily gained a reputation over the past two decades as one of the most reliable and capable motors in the GM/Chevy line. The engine is known for its bulletproof reliability, solid .

Best Bolt-On 5.3 Performance Add Horsepower to a GM 5.3L LS A big, boxy truck with a particularly blocky design and sharp angles is required. . How Much Compression Should a 5.3 Have: 5.3L Compression Test. Jermaine Harris .2008 CHEVY TAHOE 5.3 LTZ COMPRESSION TEST NUMBER SPECIFICATIONS, DOD AFM DIAGNOSIS PROCEDURE . GM Grand Master Technician 2007. 14 years experience. 32,709 Satisfied Customers. 2008 chevy tahoe ltz. need to know the torque for putting the mainfold bolts back on manifold and also the a picture. Ron. Understanding the 5.3 Vortec Engine and Cylinder Head Brief Overview of the 5.3 Vortec Engine. The 5.3 Vortec engine is a popular and powerful engine option developed by General Motors. It belongs to the Vortec family of engines . I say *****. Ask them to do the test. Ask them to explain to you how they will do the test or tests. They will certainly do a dry and wet compression test first themselves and likely a compression test on each cylinder next to #6. If that compression comes up with a wet test then is likely bad rings.

I recently bought a 1998 K3500 pickup with a 5.7L Vortec engine and 140k miles. I have discovered coolant is getting into the oil, and have decided to take on the fix as a project. . A cylinder leak down test or compression test on each cylinder can also show up a failed head gasket or cracked head/block. 2002 Silverado LS Ext cab long bed 5 . Vortec 5300 5.3L V8 5.3 vortec Misfire at idle and sulfur smell from exhaust . id give it a compression and leak down tests. This way you know the compression, gaskets, valve, rings are good. . Oh, also, might as well do a fuel rpessure test also. rent a tester from autozne, its free when you return it. Vortec 5300 5.3L V8. 5.3 Misfire. Jump to Latest 34K views 56 replies . The compression test was 145 on 6 and all were around the same. I was thinking it may be something to do with the computer. I put a noid light on injector wires and cylinder 6 was weak.Complete information on the GM 5.3L V8 L84 engine, including detailed info, specs, vehicle applications, horsepower, torque, materials, emissions and more.

The compression tester should have an end that screws into the spark plug hole,yes then plug it in to the guage.yes Pull the fuel pump relay so the engine don't start. Gently open the throttle valve (butterfly), crank the engine. You'll hear about 5 . This loss in compression ends up being a net horsepower loss even with the 317 heads' superior ports. Dyno testing on an LM7 5.3-liter has shown that the 706 heads were worth 20 hp and 15 lb-ft .

Comparing the new 5.3L DI L83 to the 5.3L Vortec LM7. News. Reviews. Buyer's Guide. Events. Magazines. The Future. Videos . Thanks to high compression and variable cam timing, torque production .

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compression test 5.3 vortec|5.3 Vortec Compression Test: Specs, PSI, and Numbers

compression test 5.3 vortec|5.3 Vortec Compression Test: Specs, PSI, and Numbers.

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