Strange Days - Land Rover Forums : Land Rover and Range Rover Forum
 
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post #1 of 6 (permalink) Old 06-16-2019, 09:07 AM Thread Starter
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Strange Days

2002 153k, headgasket replaced over 2k miles ago. While driving home from work a couple days ago, driving on highway about 70mph, my rover decided to lose power. It was still running but very little to no response from the gas pedal as well as the check engine, oil pressure and battery lights came on. I pulled over and called a tow truck. Checked under the hood while waiting and had plenty of oil and coolant, no leaks of any type(for once). Battery terminals are clean, serpantine belt in good condition. There were no unusual sounds or smells, nothing burning when this happened either, just loss of power. When the tow truck arrived the driver asked me if i was able to drive it at all to try and get it squared up with the truck, i gave it a shot. To my surprise the truck started up fine, ran fine and there were NO lights. The CEL, Oil pressure light and battery lights were no longer on. I got the tow anyways. I plug in my code reader when i get the truck home and there is nothing in the system, so i drive it again to see if i can repeat the issue. As i return from my test drive the vehicle completely dies in the drive way(thank god). This time the engine cut out but still presented with the same dash lights. Again no stored codes, im still trying to figure out my code reader, hopefully i got some of the live data. Any one have any thoughts on this? Things to check to help diagnose the issue?
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post #2 of 6 (permalink) Old 06-16-2019, 11:53 AM
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If you can start it again check the voltage on the battery at idle cos it seems like alternator failure... if it's good let the scanner connected and watch the voltage when the symptom occurs cos it might be intermittent

My friends call me Fery

2000 Discovery Td5 ES manual

Hawkeye v.6, Nanocom EVO,
VDM UCANDAS, oscilloscope


if you think my english is peculiar it means you didnt hear my japanese

ALL MY ADVICES ARE BASED ON MY OWN KNOWLEDGE AND MY WAY OF UNDERSTANDING THE DESCRIPTION AND OPERATION OF SYSTEMS... I'M NOT A LAND ROVER TRAINED SPECIALIST JUST AN ADDICTED ENTHUSIAST.
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post #3 of 6 (permalink) Old 06-16-2019, 02:46 PM Thread Starter
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Ok, both the alternator and fuel pump were on my list of things to test. I think i changed the alternator in 2010 if i remember correctly, the fuel pump is original. I'll post once i have some time to tinker.
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post #4 of 6 (permalink) Old 06-21-2019, 11:41 AM Thread Starter
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finally got around to tinkering with the rover and had the following result

Battery engine off - 12.21 v
engine idle - 14.06 v
rpm 1500 - 14.08 v
idle with lights and radio - 13.96

at this point i was going to test the engine at 1500 rpm with the electrical stuff on but got lots of hesitation engine stopped responding to the gas pedal mil and m and s lights come on, the engine didn't stall out though. No strange sounds smells or anything unusual other than engine response to gas pedal. Code is p0335, looks like ill be switching the cps. How do the voltage numbers read to you guys, seem a bit low. I don't think i have any issues with fuel pressure, vehicle starts up just fine everytime....so far.
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post #5 of 6 (permalink) Old 06-21-2019, 04:27 PM
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My son's car acted like that right before the fuel pump died. Maybe you can get a fuel pressure reading?
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post #6 of 6 (permalink) Old 06-21-2019, 11:17 PM
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Those voltages are OK except the battery which should have at least 12.6V if it's charged

My friends call me Fery

2000 Discovery Td5 ES manual

Hawkeye v.6, Nanocom EVO,
VDM UCANDAS, oscilloscope


if you think my english is peculiar it means you didnt hear my japanese

ALL MY ADVICES ARE BASED ON MY OWN KNOWLEDGE AND MY WAY OF UNDERSTANDING THE DESCRIPTION AND OPERATION OF SYSTEMS... I'M NOT A LAND ROVER TRAINED SPECIALIST JUST AN ADDICTED ENTHUSIAST.
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