Pre-purchase inspection checklist — 2004 Peterbilt 379
The 2004 Peterbilt 379 has a few notable recall issues involving brake systems, engine components, and equipment labeling, which buyers should verify. Overall, it's crucial to confirm these problems were resolved before considering a purchase.
NHTSA data on file today
The 2004 Peterbilt 379 has 4 NHTSA recall campaigns and 1 owner complaint on file as of . Recall data is refreshed daily from NHTSA.
Recall campaigns on file
- NHTSA #13V593000 Certification Label Missing Information NHTSA notice
- NHTSA #07V044000 BRAKE PROPORTIONING VALVE ASSEMBLY NHTSA notice
- NHTSA #06V251000 ICON ELECTRONIC SERVICE TOOL/CUMMINS NHTSA notice
- NHTSA #05V570000 VARIABLE VALVE ACTUATION OIL LINE/OIL LEAK NHTSA notice
Most-cited components in owner complaints
- Engine and Engine Cooling 1 complaint
Known issues to inspect
Incomplete label information
How to check: Verify presence of all certification labels and data.
Omitted air hose
How to check: Inspect air hose connections between valve and cab bulkhead.
Unintended engine start
How to check: Check for any unusual behavior with engine starting.
Oil line wear risk
How to check: Examine engine oil lines for any wear or contact.
Test-drive walkthrough
- 01
Cold start
What to check: Observe if the engine starts unexpectedly or has difficulty.
Red flag: Engine starts on its own.
- 02
First minute idling
What to check: Listen for unusual noises from engine.
Red flag: Knocking or clicking sounds.
- 03
Applying brakes
What to check: Test brake function and response time.
Red flag: Delayed or weak brake response.
- 04
Checking dashboard
What to check: Ensure all warning lights are off.
Red flag: Persistent brake or check engine light.
- 05
Parking and shutting down
What to check: Ensure engine shuts off smoothly.
Red flag: Difficulty in shutting down engine.
Questions for the seller
Use this exact phrasing.
- Has the brake system recall been addressed?
- Were certification labels checked and updated?
- Has the engine starting issue been fixed?
- Any repairs for oil line positioning?
- Are there any unresolved recalls?
Documents to request
Don't sign anything until you have these.
- Service records
- Recall repair documentation
- Vehicle history report
- Previous owner information
Generated by gpt-4o on from the NHTSA recall campaigns and owner-complaint counts on file for the 2004 Peterbilt 379 at the time. AI output can be wrong; confirm anything you find with a mechanic.
Next step
Looking at a specific 2004 Peterbilt 379? Check the actual car
This checklist covers the model. From your free try.vin dashboard you can go further — paste the seller's listing for a deal score, or drop their photos for an AI condition report.