Had low pressure on the oil pressure cluster I added 2 courts of oil cluster stop dropping now after that I started my truck

Tiny
SEPTEMBER2025
  • MEMBER
  • 2002 CHEVROLET TRAILBLAZER
  • 4.2L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 300,000 MILES
And I get a p1482 code then the truck sputters and shuts down after I added oil to stop the oil cluster from dropping
Monday, December 8th, 2025 AT 3:57 AM

8 Replies

Tiny
KRAKENAUTO
  • MECHANIC
  • 71 POSTS
Normally if your PCM detects an improper circuit condition during operation, diagnostic trouble code P1482 will be triggered. An incorrect voltage level has been identified on the cooling fan clutch control circuit. So I would check your fan clutch.

If you have a scan tool capable of running a functional test, you can try to activate it with the tool and see if it responds. The cooling fan clutch could have failed and faulty coolant temperature sensor readings causing fan speed errors.
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Monday, December 8th, 2025 AT 8:02 AM
Tiny
SEPTEMBER2025
  • MEMBER
  • 6 POSTS
  • 2002 CHEVROLET TRAILBLAZER
  • 4.2L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 300,000 MILES
I had low pressure oil gauge I filled with 2 courts of oil no more low pressure oil gauge I went out to get my truck washed and then got home and restarted the truck and code p1482 code then it sputters and shuts down
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Monday, December 8th, 2025 AT 8:11 AM (Merged)
Tiny
KRAKENAUTO
  • MECHANIC
  • 71 POSTS
I responded to your other question regarding the same error. It is possible when you got the vehicle washed it go wet under the engine compartment and shorted the circuit to the fan clutch. Follow the suggestion I gave on the other post.
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Monday, December 8th, 2025 AT 8:11 AM (Merged)
Tiny
SEPTEMBER2025
  • MEMBER
  • 6 POSTS
Thankyou okay that's a plus get another clutch fan I put a clutch fan in 03 I will give this a try
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Monday, December 8th, 2025 AT 8:20 PM
Tiny
SEPTEMBER2025
  • MEMBER
  • 6 POSTS
I do get heat from it. Do the engine have a rubbing sound after a few seconds the truck shuts down and then have to turn the key a hold it in turning on position and then slowly starts up. And rpm goes below 1rom and shuts down that's the clutch fan
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Monday, December 8th, 2025 AT 8:35 PM
Tiny
SEPTEMBER2025
  • MEMBER
  • 6 POSTS
This the sec mnotor I've had installed in 3 years from low oil pressure making a loud noise this motor is not sounding like my 1st blown motor I'm give that a try replacement of clutch fan waiting for the mechanic to come around see most mechanics work without a shop and right now it's 31 degrees
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Monday, December 8th, 2025 AT 8:39 PM
Tiny
SEPTEMBER2025
  • MEMBER
  • 6 POSTS
I tried to drive it and went around the block and I had to keep clearing the code to stay running I went in a circle around my block and parked right back were it was I been had a oil leak so I took that off the list for this reason I'm hopping that this is it see what happens after the mechanic checks it out I be in touch if needed or ile be back to say thank you for your service and or I be back to up date the situation thanks
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Monday, December 8th, 2025 AT 8:44 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,191 POSTS
It sounds like the engine is damaged from the low oil condition, can you upload a short video of the noise so I can hear it? That way we can see if the engine is any good or not. Dont worry about the code right now, if the engine is no good you will have bigger problems to deal with than the fan clutch.

Code P1482 - Cooling Fan Speed Signal Fault (Fan Clutch Circuit #2)

Please upload a short video in your response of the problem, so I can see what's going on.
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Wednesday, December 10th, 2025 AT 9:39 AM

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