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My name is Ben and I'm your guru, i.e., mentor, an influential teacher or popular expert: a management guru. - origin from Sanskrit, 'weighty, grave', for today.
As you evaluate my advise. solutions and suggestions, there are a few things you must keep in mind:
• I did not diagnose your problem and am therefore only able to evaluate what you tell me. For exampl
e, if you ask me a fuse location, that doesn't mean that I can tell you the reason why the fuse blew. I can only react to the information that you provide. So please judge my suggestions accordingly.
• A thorough diagnostic approach involves the use of technical equipment, such as voltage meters. scanning equipment and other sophisticated devices. Diagnostic tools can be borrowed from AutoZone for FREE
• Lastly, fixing one problem can very easily reveal a problem with something that you might consider unrelated. If that happens, you might want to view me as being incompetent. Please understand that I can only analyze and suggest based on the information that you provide.
Let's get started.Discussion:
This question comes up more often than you might think. My initial advice is usually the same. It may not be the fuel pump' If the engine will not start or runs but displays symptoms that you suspect are fuel-related (hard starting, hesitation, misfiring, power loss). first attempt to eliminate other possible causes of the problem.
- Always check the vehicle's on-board diagnostic system. (More on this later)
- Check the ignition system.
- Check for vacuum leaks.
- Check the EGR and PCV systems.
- Run a power balance test.
The following instructions will outline the above suggested procedure.Step One.
Do a Thorough Visual Inspection
Do a thorough visual and "hands-on" underhood inspection before starting any diagnostic procedure! You can find the cause of many problems by just looking, thereby saving yourself a lot of time.
• Has the vehicle been serviced
recently? Sometimes things get
reconnected in the wrong place, or
not at all.
• Don't take shortcuts. Inspect hoses
and wiring which may be difficult to
see due to location.
• Check sensors and actuators for
• Inspect ignition wires for:
- Damaged terminals.
- Split or cracked connectors
- Splits, cuts or breaks in the ignition
wires and insulation.
• Inspect all vacuum hoses for:
- Correct routing. Refer to vehicle
service manual, or Vehicle Emission
decal located in the engine compartment.
- Pinches and kinks.
- Splits, cuts or breaks.
• Inspect wiring for:
- Contact with sharp edges.
- Contact with hot surfaces, such as
- Pinched, burned or chafed insulation.
- Proper routing and connections.
• Check electrical connectors for:
- Corrosion on pins.
- Bent or damaged pins.
- Contacts not properly seated in
- Bad wire crimps to terminals
DO NOT RUN OUT AND BUY ANYTHING YET! This was only the opening act.Discussion
: Late model vehicles are highly computer controlled to reduce emissions, maximize fuel economy and improve consumer comfort. The various control systems in vehicles are interrelated and controlled by multiple computers,sensors, relays, and circuit breakers that constantly monitor vehicle performance through a myriad of sensors located throughout the vehicle. Based on information received, the computers adjust the vehicle performance through a series of valves, switches and motors. You must use a scanner to unlock the information stored in your car's computer.
A Scan Tool can be used to read and erase trouble codes, display, record and play back LIVE diagnostic data and perform other tests allowed by the vehicle maker. Scan tools that cover vehicles 1982 to present are available at your local auto supply dealer.
You don't indicate any diagnostic tests to date. A dealer or your local mechanic will charge $100-$200 to perform a diagnostic scan. However, AutoZone will provide a thorough scan for FREE. Anyone who tells you that a modern vehicle can be diagnosed without a scanner with the problems you have set forth is merely guessing. You car has a computer and memory and probably knows exactly what the problem is. That on-board computer is just waiting for you to ask, "What's wrong". All of the suggestions that I can ;make would of necessity be based on the scanner readings
Irrespective of what anyone tells you, there is but one way of diagnosing your problem. If I were to make a suggestion, it would be -- at best --. a mere guess. A diagnostic scan retrieves any information related to the malfunctioning parts and tells you precisely what is wrong. Perform the scan diagnostic now.
All the best,