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What is a Technical Service Bulletin Where should i go when TSB is issued for my vehicle? Is it free repair or service at dealer if TSB is released? Below i will explain you Complete Theory of TSB in Detail :---- A Service Bulletin in the automotive trade is called a Technical Service Bulletin (TSB). TSB's would be better described as a problem/solution bulletin. TSB's can cover a large array of problems. Let's start with the repair manuals and time guides. It is not uncommon for the diagnostic or repair procedure to be incorrect, just plain wrong, in the repair manual. Nobody is going to reprint the whole manual, instead TSB's are issued to alert the tech and be used as an insert. TSB's report on updated repair procedures and new parts to replace problem parts. TSB's have fixes for some of the strangest problems like dash itches to providing information on just how a component or system should be operating.  TSB's also report on warranty...

What is a Service Engine Light?   What exactly  has to be serviced? Complete Engine or some particular part? A: You know, that’s a great question! Because the only other backward phrase next to the "Service Engine Soon" is "Check Engine". What person with any sense would use such a phrase? The Check Engine warning light comes on in a bright yellow. So you stop your vehicle and open the hood. Surprise! The engine is still there. No it didn’t fall out while you were driving. It looks no different than that last time you saw it. So, what’s the point of that darn warning light? Okay, now the Service Engine Soon light. Just what the heck does that mean? What’z, the oil low? No, it must be the coolant! I know of people that had their oil changed 2 to 3 times in an effort to turn the Service Engine Soon light off. It wasn’t that these people were on the short end of a stick. Though it would have been helpful to read the foreign language manual that comes with the ...

What is Fuel Too Lean? Q: I got Error code stating Fuel Lean.What is "fuel is too lean" mean in the diagnostic test? A: I will explain you the query with complete detail. Go through the details mentioned below.Fuel Too Lean is possibly one of the most difficult computer codes to diagnose. Why is that? There are a couple of things that you need to understand first, before you understand what too lean means. An engine to run correctly needs a good balance of air and fuel. This balance is called the air /fuel ratio. A correct balance of air and fuel is generally at a ratio of 14.7 pounds of air to one 1 pound of fuel. If you change either number of that ratio, is will have an effect on the engine's performance. The computer in your vehicle is always working to maintain the correct air/fuel ratio. However, as time goes on the engine wears, fuel injectors become restricted, vacuum leaks happen and sensors may become worn and/or lie to the computer. After all, it is a ro...

OBD CODE TESTING SCAN TOOL FOR CAR AND JEEPS What Scan Tool To Buy? Q: I need a little advice. My code reader is just not getting the job done. I need a scan tool and would like to only spend my money once. What features am I looking for and do you have a recommendation? A: Here’s the first fact that you’ll have to face; you will never spend your money “just once” on any scan tool made today. There is not one scan tool made that will do it all. If there was it would be over $20K for that scan tool and it would still be outdated next year! Whatever you buy plan on paying for software updates if you want to work on next years cars. Plan on whatever scan tool you buy being outdated by the year 2008, unless you plan on buying the updated modules that will allow the scan tool to work with the newer, faster communications systems that are just around the corner. I could start a scan tool museum with the dust collectors I have in storage that won’t work on today’s cars, but if an ’...

How To Know About Quality Of Gas Used For Vehicle Buying Cheaper Gasoline For Car Q: In  New Hampshire few Wholesale Food Clubs  sell gasoline at least 10 cents a gallon less than brand names. How can they do that and can this product be harmful to an engine?....Gerald. A: First, ask yourself why you go to the Wholesale Club to buy their product? The answer more often than not is price. When a company as big as these wholesaler's want to buy product they have unsurpassed buying power. They go directly to the manufacturer and order, not a truck load, but train loads of product. As for gasoline? Buying power, combined with volume of sales, allows for the pricing you're seeing. There are state and federal laws that govern gasoline. The manufacturer and retailer of gasoline are open to a big pile of trouble if the gasoline being sold is mislabeled or does not meet state and federal standards. Hey, whenever I'm buying a 40lb bag of cheese curls I fill my gas tank too!

Accidentally poured windshield fluid in radiator Q: I accidentally pour windshield fluid into my radiator. Has it caused major damage? Do I need to take it to a mechanic right away? A: It's not a good thing to mix coolant with window washer fluid. You should also know that you are not the first and you will not be the last person to perform such a wondrous feat. My suggestion? Take your vehicle to your repair facility and have them drain and refill the cooling system, don't forget the coolant reservoir too. Just be thankful you didn't put anti-freeze in the windshield washer reservoir. That stuff really makes a mess of the windshield.

Check engine light reset Q: Please Tell  how to turn off my "Check Engine" light? For 1997 Jeep Grand Cherokee Laredo, 4.0 L. An auto parts store guy read the code for me, and said he thought it would turn off after about 15 or so "drive cycles". Any truth to that? A: The “Check Engine” will turn off by itself if the problem is no longer present after about 3 drive cycles. Each time your vehicle is started and driven the computer’s software commands a wide variety of tests to be performed and monitors various sensors while the vehicle is being driven. A drive cycle is when the vehicle/engine sets long enough for the coolant to drop below a specified temperature. Then the engine is started and the vehicle is driven at different speeds and allowed to reach full operating temperature. The reason for this? The computer not only tests the system, it also monitors for range of operation. Certain tests can only be performed when the engine is cold while others are ...