Volvo I-Shift Fault Code
Free · no signupMID 130 PSID 028 FMI 07
Grinding into 1st / Severe Shift Delay
System
Braking / Countershaft
Symptom
Grinding into 1st / Severe Shift Delay
Diagnosis & fix steps
LOGIC: Countershaft Brake Mechanical Failure (Fails to Stop Shaft).
ACTION: Remove countershaft brake valve on the side of the transmission. Inspect internal multi-disc friction brake pack for worn/burnt discs; check pneumatic apply pressure solenoid operation.
Red Seal field insights
Stop-Shaft Function: When shifting from Neutral into 1st or Reverse at a standstill, the pneumatic countershaft brake stops spinning gears within 0.3 seconds; a failed brake causes harsh grinding.
Same code keeps coming back?
That's a program problem, not a part problem. Book a 30-minute uptime review with Grant, a Red Seal Heavy Duty Technician.
Read before you touch anything
- This is general reference information, not a repair manual. It is for trained, qualified technicians.
- Fault codes, meanings and procedures vary by model, serial number and software version. Confirm the code and the procedure against the manufacturer's service manual before acting.
- Follow the OEM service manual, torque specs and your site's safety procedures: lockout/tagout, block raised equipment, relieve hydraulic, fuel and air pressure, and let hot systems cool.
- You use this information at your own risk. Adventure Mechanical and AM Fleet Integrity accept no liability for damage, injury, downtime or loss arising from its use.
- Not affiliated with or endorsed by any manufacturer. Brand names are used only to identify the equipment a code applies to.
Track this across your whole fleet
This code is free to read. AM Fleet Integrity lets your team log fault codes against assets, plus the full fault-code library, QR operator reporting, PM scheduling and predictive alerts. Start free — no credit card required.
Start your free trial