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Insufficient Acceleration, Lack Of Power Or Excessive Fuel Consumption - Toyota 1HD-FT Repair Manual

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Table of Contents
ENGINE - TURBOCHARGER SYSTEM
TROUBLESHOOTING
EG-95
HINT: Before troubleshooting the turbocharger. first check the engine itself. (Valve
c1ear~c:.
engine compression. ignition timing etc.)
INSUFFICIENT ACCELERATION, LACK OF POWER OR EXCESSIVE FUEL
CONSUMPTION
1.
TURBOCHARGING PRESSURE TOO
-
Check turbocharging pressure. (See page EG-971
LOW
Turbocharging pressure:
38.6 - 50.0 kP.
10.39 - 0.50 kgf
I
cm
2 • 5.6 - 7.3 psi)
If the pressure is below specifications, begin
diagnosis from item 2.
(Possible Cause)
2. RESTRICTED INTAKE SYSTEM
3. LEAK IN INTAKE AIR SYSTEM
4. RESTRICTED EXHAUST SYSTEM
5. LEAK IN EXHAUST SYSTEM
lCheck Procedure end Correction Method)
Check inlake air system, and repair or replace parts
as necessary. (See page EG-97)
Check intake air system, and repair or replace parts
as necessary. ISee page EG-97)
Check exhaust system, and repair or replace parts
as necessary. (See page EG-97)
Check exhaust system, and repair or replace parts
as necessary. (See page EG-971
6.
ERRATIC TURBOCHARGER
I---
Check rotation of impeller wheel. Jf it does nOI
OPERATION
turn on turns with a heavy drag, replace the
turbocharger assembly.
Check axial and radial plays of turbine shaft.
(See page EG-1 01)
Maximum axial play:
0.13 mm 10.0051 in.) or less
Maximum radial play:
0.18 mm 10.0071 in.) or less
If not within specification, replace the turbocharger
assemblv·

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  • Dibakar Kundu Aug 13, 2019 04:39:
    much helf full to us,we hope will get this type of support in future.