What are the common issues with the RB26DETT engine in the 1999 Skyline GT-R?

Question

Accepted Answer

The RB26DETT in your 1999 Skyline GT-R has several well-known issues to watch for:

**Most Critical Issues:**

1. **Oil Pump Failure** - The #1 concern. While the 1999 R34 has improved crankshaft design over earlier models, the oil pump can still fail at high RPM/power levels. Look for signs of low oil pressure or consider preventive upgrades like the N1 oil pump.

2. **Ceramic Turbocharger Failures** - The factory ceramic exhaust wheels can delaminate under increased boost or heat. Symptoms include loss of power, excessive smoke, or unusual turbo noise. The ceramic turbos are reliable at stock boost levels but become a weak point when modified.

**Common Maintenance Issues:**

3. **Ignition System Problems** - Coil pack failures and misfires are common as these engines age. Watch for rough idle, hesitation, or check engine lights. Regular replacement of spark plugs and coil packs is essential.

4. **Cooling System Limitations** - The factory cooling system is adequate for stock power but can struggle with modifications or in hot climates. Overheating can lead to serious engine damage.

**Good News:** Your 1999 R34 benefits from Nissan's continuous improvements - the crankshaft oil pump drive is much stronger than early R32 models, making catastrophic oil pump failures less likely.

**Questions to ask the seller:**
- Has the oil pump been upgraded or serviced?
- Any turbo modifications or boost increases?
- When were the coil packs last replaced?
- Any overheating issues?

Given this car has 65k miles and appears mostly stock, these issues are manageable with proper maintenance. Would you like me to help you find similar GT-Rs for comparison, or do you have specific questions about any of these issues?

Lot 26-072: 1999 Nissan Skyline GT-R

Classic cars

Cars for sale

Resources

Lot 26-072: 1999 Nissan Skyline GT-R

Become a CLASSIC Insider