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Dandd

Pacifica, CA

Lead Diagnostic Technician for a California Gold Shield Emissions Inspection and Repair Station. Over 25 years of Automotive Technician Experience in Dealerships and Independent Shops. Worked as a Technical Trainer for Snap On Tools and helped write the Exam questions for the California Smog Technician License Exam. RepairPal Staff member since October 2007.


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Questions & Answers | Problem Reports | Reviews | Comments

Question Answered: 

Many things, unfortunately, so first things first, scan for any codes and solve them. Also don't rule out the basics i.e. spark plugs, wires, air and fuel filter etc.


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Question Answered: 

I think that your truck is running way too lean, I bet the oxygen sensor codes are for lean conditions. Do you have any P0171 and P0174 codes, if so check for any vacuum leaks, and don't rule out a defective mass air flow sensor. Here is an article that I wrote that addresses lean running code/problems and how to approach diagnosis of them. http://repairpal.com/OBD-II-Code-P0171-and-P0174


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Question Answered: 

Most likely it is the vehicle speed sensor, at least that is the first thing I would check. they run about $100 plus about $50 labor to install, but have the problem diagnosed first and foremost, please, don't guess!


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Question Answered: 

It can be so many things on these engines, it may be the VANOS is out of spec, that is the computer controlled valve timing, which is a pretty common on these cars and WILL set cam codes.


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Question Answered: 

go to http://www.alladatadiy.com and find out how to access the check engine codes and then retrieve it and trace the cause first and foremost. I get these codes with a scanner, but I don't think that you have one, there is usually a way to get the mopar codes pre-1996, I think that you just turn the key on and wait, the CEL will blink out the code, at least it does on most pre-1996 mopar. Hang in there, YOU can do this!


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Question Answered: 

You have a malfunction in your traction control system that is associated with the power train computer, thus the check engine AND flashing traction lights. Push the traction button to disable it ( lower left hand side of dash, should be in your owners manual under traction in back ) and get your car to a repair shop ASAP. When you push the traction button, you have NO MORE traction control safety.


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Question Answered: 

What sensor? then I can help you. What is the actual number of the code i.e PXXXX as in P0101 for mass air flow sensor etc.


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Question Answered: 

Have a REPUTABLE muffler shop look at this, they will know if the wear and blackened portion is abnormal or not.


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Question Answered: 

Too many to list here, so first and foremost, check for any vacuum leaks, check the fuel trim with a scanner, LTFT should not be above 8% at idle. Check the plugs, wires, filters etc. In other words, check and inspect basics and go from there. You will NEVER go too wrong by checking the basics first and foremost.


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Question Answered: 

Diagnose the issue, in that check for codes, inspect wear and tear of the tune-up parts, filters, cleanliness of the throttle body etc. Do the basics first.


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