I have a 97 dodge neon and every time i try to start it the fuel pump fuse under the hood blows
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You apparently have grounding or a bad connection problem in the electrical system.
• I did not diagnose your problem and am therefore only able to evaluate what you tell me. For example, 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.
Perform 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. Look first in the rear of the vehicle with the rear open. Under the plastic molding is a wire junction and this is where you'll begin your visual inspection. But first:
• 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 the wiring harness wires for:
- Damaged terminals.
- Split or cracked connectors
- 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
If you didn't find the problem by doing the thorough inspection, proceed to the next section
Next: Perform a diagnostic Scan
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 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.
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.
If the fault is in the electrical system, the readout will be in the following range:
P0500 to P0599 This range of codes is related to electrical malfunctions. There could be a problem with the fuse box or electrical wiring, the idle control system, power steering, or cruise control could all be ailing.
If the fault is in the fuel management system, the readout will be in the following range:
P0100 to P0199 Meanings The computer codes ranging from P0100 to P0199 have to do with sensors within the engine's intake, exhaust, and carburetor. They may indicate a problem with the mass air flow sensor, the oxygen sensor, the oil temperature sensor, the fuel pump, or the fuel pressure sensor. In all these cases, the sensors are sending feedback to the PCM which is outside of normal threshold values, indicating that the sensor could be broken, or there could be a problem in the engine's functioning which would cause these values to be recorded.
Anyone who tells you that a modern vehicle can be diagnosed without a scanner with the problems you have set forth is a fortune teller or 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 the best,
P0500 to P0599
This range of codes is related to electrical malfunctions. There could be a problem with the fuse box or electrical wiring, the idle control system, power steering, or cruise control could all be ailing.
Oct 06, 2011 |
1997 Dodge Neon