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Showing Visitor Messages 1 to 10 of 85
  1. smj999smj
    Apr 28th, 2019 08:01 AM - permalink
    Does the engine crank over and not start....or does it not crank over at all?
  2. Andrew Bryan
    Apr 20th, 2019 07:43 PM - permalink
    Andrew Bryan
    My 2013 rogue had a radiator leak and overheated last night. After filling the radiator and letting it cool down, it wouldn't start. Checking the codes, they read out engine over temp and bad MAF sensor. So I replaced the radiator and the MAF sensor, but car still wouldn't start. Checked the codes again, it read IAT over voltage. Reset codes and then it just reads out error code 0000 and still won't start. I'm lost. Please help
  3. smj999smj
    Mar 14th, 2019 01:20 PM - permalink
    P0420 and P0430 codes are catalytic converter efficiency codes. It's determination for triggering the code is based on the upstream and downstream oxygen sensor input to the ECM. It is not necessarily a clogged catalytic converter that causes these codes, but an inefficient converter...meaning it is no longer breaking down the exhaust gases as efficiently as it's supposed to do. It is only the converter(s) between the upstream and downstream oxygen sensors that is/are monitored, so for your Nissan, it is strictly looking at the upstream converter. So, you still likely need to replace the upstream catalytic converter to get the P0420 code from triggering.
  4. marsh9`9
    Mar 13th, 2019 06:19 PM - permalink
    Hello I performed a back pressure exhaust test on the upstream 02 port and got a zero reading even after increasing rpm. So according to what I have read and viewed the converters are good.. I know the rear one is because it is new along with the muffler. I am thinking if I install the upstream converter the PO420 code will still cause the check engine light to reappear. I have changed both O2 sensors with Bosch, OEM.. the upstream about 2 years ago the and rear with the new exhaust replacement parts. The gas mileage is as it should be 22 city and more on highway.
  5. smj999smj
    Jun 16th, 2018 11:59 PM - permalink
    It could be a bad fan clutch. I replaced mine on my 2006 Pathfinder last year. I was able to do it on the vehicle without discharging the system or removing the compressor. It wasn't too bad of a job and I did it in my driveway. I forget the name of the brand, but it started with an "M" and it was made in the USA and I got it on Ebay for around $110. Also, make sure the electric fan is coming on.
  6. #Jupiter123
    Jun 7th, 2018 06:14 PM - permalink
    2006 Pathfinder. Thanks for the help on my overheating problem. New problem is my Air Cond Cools when I am driving then stops when I slow down, stop, or at a drive thru window. Checked R134 and its fine. No obstruction between condenser and radiator or bent fins. When I am stopped I notice every now and then the compressor seems to shudder when engaging. Any help appreciated.
  7. smj999smj
    Mar 10th, 2018 04:40 PM - permalink
    NOTES FOR THOSE SENDING MY MESSAGES REGARDING PROBLEMS: The message board only allows 1000 characters. If you question requires a detailed response, you may be better off E-mailing me directly at: [email protected]. Put in the comment line: "RE: Question about my Nissan." It makes it a lot easier for me than typing a response then having it not post because it's too long, then having to break it up into multiple messages. Thanks!
  8. thatguy427
    Mar 9th, 2018 12:13 PM - permalink

    A family members Pathfinder has been having problems recently and from my research you have commented quite a bit on the subject and seem to be very knowledgeable on the subject. I'm hoping you can help me out. I have not looked at the car yet to confirm the problem but from the descriptions given to me it seems like the transmission has been damaged on this 2006 Pathfinder due to the radiator's internal tranny fluid cooler failing. Do you know what all gets damaged? Will a transmission rebuilt kit fix the problem or are their additional parts that need replaced? torque converter?

    Any help would be greatly appreciated.

  9. smj999smj
    Mar 4th, 2018 07:31 AM - permalink
    So, it sounds like you have an aftermarket radiator, which is fine. I guess at this point it wouldn't hurt to try replacing the thermostat if it hasn't been done.
  10. #Jupiter123
    Feb 26th, 2018 05:38 PM - permalink
    I followed your thread for my 2006 Pathfinder. Radiator cap and coolant reservoir are in the correct place.No sticker or imprent of Calsonic-made radiator v isable on top of radiator. No blockage of condenser or radiator cores.Coolent level full and vehicle was jacked up twice and ran @ 2500-3000rpm for 10 min. It overheats on highway drives to a point 3/4 the way up gauge. Ya think I need to replace thermostat? looks like the spring type clamps are on the hose not worm gear clamps which leeds me to believe therm was not replaced. Thanks for your help

  About Me

  • About smj999smj
    2006 Pathfinder LE
    Former Certified Nissan Master Technician, 1985-2003.
    Prospect, VA
    Corrections Officer/Auto Technician/Truck driver


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  • Last Activity: Yesterday 03:28 AM
  • Joined: Jan 1st, 2006


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Apr 11th, 2018
10:07 PM - Joeyfoglepathfinder mentioned smj999smj in post Shifting issues...bad tranny control solenoid?
smj999smj thank you for the fo...
Mar 5th, 2018
07:40 PM - Car guy mentioned smj999smj in post 88 Pulsar 1.8 Problem
...ting folks know. smj999smj made another good ca...
Feb 26th, 2018
09:25 AM - jtodd630 mentioned smj999smj in post Trailer lights not working at all
smj999smj, fuses are all good ...
Nov 24th, 2017
11:54 PM - qamar_pakistan mentioned smj999smj in post Nissan vs Toyota
...for the information smj999smj Sent from my SM-N91...
Nov 3rd, 2015
12:45 AM - qamar_pakistan mentioned smj999smj in post GA15DE or GA16DE
smj999smj can you also help me...
Nov 2nd, 2015
12:25 AM - qamar_pakistan mentioned smj999smj in post GA15DE or GA16DE
...hanks for your help smj999smj I have decided to go...
Oct 31st, 2015
12:38 AM - qamar_pakistan mentioned smj999smj in post GA15DE or GA16DE
smj999smj another guy yesterda...
Oct 4th, 2015
03:09 PM - qamar_pakistan mentioned smj999smj in post Which is the best engine for my ride?
Thanks smj999smj for your kind reply...
Mar 24th, 2014
02:45 PM - sillingworth mentioned smj999smj in post Never Again!
smj999smj I have just purchas...

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Feb 22nd, 2019
11:13 PM - smj999smj quoted kirby1111 in post 2001 Nissan Frontier SC timing belt just replaced making knocking noised
Hi, I just joined this forum t...
10:56 PM - smj999smj quoted BRubble in post 2001 Nissan Frontier SC timing belt just replaced making knocking noised
Kirby, As far as I know,,...
Feb 16th, 2019
02:45 AM - smj999smj quoted FastbackJon in post Lug Nuts for OEM alloy wheels?
Thank you. I am putting these wh...
Feb 7th, 2019
06:13 AM - greg9x quoted smj999smj in post 07 Altima gone crazy
It sounds more likely a Body C...
Feb 3rd, 2019
02:47 PM - B12Chris quoted smj999smj in post B12 clutch for B11?
Well, you didn't say you were ...
12:43 PM - smj999smj quoted quadraria10 in post Will the trunk lid from a 4 door fit a 2 door SE-R?
My thinking was that the part di...
Jan 21st, 2019
05:29 PM - smj999smj quoted Plogo in post 2000 Pathfinder aftermarket exhaust parts
Does anyone know what othe...
Jan 18th, 2019
09:13 AM - smj999smj quoted rogoman in post Lift kits
IMO, it should fit. Same pla...
08:41 AM - smj999smj quoted RainGoat in post Pathfinder power valve failure
PathyConvert What ever happen...
Jan 17th, 2019
07:36 AM - B12Chris quoted smj999smj in post CA18 on E16 tranny
It's probably be easier to loc...
Dec 26th, 2018
08:07 AM - surveywaters quoted smj999smj in post Engine flooded? at cold start
[QUOTE=smj999smj;1703155]You may need...
06:46 AM - smj999smj quoted IanH in post Most Reliable Year for Pathfinder
I guess one more comment ...
Dec 18th, 2018
02:12 PM - BRubble quoted smj999smj in post Crank no start
I recently went back to Nico C...
Dec 15th, 2018
11:11 AM - anu0512 quoted smj999smj in post Windshield wiper washer sensor
The sensor is part of the wash...
Dec 7th, 2018
06:11 AM - saddy2005 quoted smj999smj in post Nissan Murano o2 sensor replacement
Just curious...why do you thin...
05:56 AM - anu0512 quoted smj999smj in post Windshield wiper washer sensor
Let's start with a year for yo...
Nov 5th, 2018
01:03 AM - jjiju1943 quoted smj999smj in post Most Reliable Year for Pathfinder
...a pain, as well. smj999smj, I can't thank you e...
Oct 31st, 2018
10:09 AM - jjiju1943 quoted smj999smj in post Most Reliable Year for Pathfinder
Nissan started using front whe...
03:38 AM - smj999smj quoted cptspock in post 2008 pathfinder cranks but won't start
I have found that it is proba...
Oct 27th, 2018
01:50 AM - smj999smj quoted jamesm113 in post Replacing the Front Seal
Get a socket and a breaker bar...
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