Chevrolet Sonic Repair Manual: Timing Belt Idler Pulley Installation
Special Tools
EN-45059 Angle Meter
For equivalent regional tools, refer to Special Tools.
- Re-cut the timing belt idler pulley thread.
- Install the timing belt idler pulley (2) and tighten the NEW timing belt
idler pulley bolt (1) a first pass to 20 Y (15 lb ft)
.
- Tighten the NEW timing belt idler pulley bolt a second pass to an additional
120 degrees
, using the EN-45059 meter.
- Tighten the NEW timing belt idler pulley bolt a final pass to an additional
15 degrees
, using the EN-45059 meter.
Caution:
Refer to Fastener Caution.
Caution:
Refer to Torque-to-Yield Fastener Caution.
Timing Belt Upper Front Cover Replacement
Timing Belt Upper Front Cover Replacement
Callout
Component Name
1
Timing Belt Upper Front Cover Fastener (Qty: 2) ...
Timing Belt Idler Pulley Removal
Remove the timing belt idler pulley bolt (1).
Remove the timing belt idler pulley (2).
...
Other materials:
Trim Height Inspection
Trim Height Measurement
Trim height is a predetermined measurement relating to vehicle ride height.
Incorrect trim heights can cause the vehicle to bottom out over bumps, damage
to the suspension components and symptoms similar to wheel alignment problems.
Check the trim heights wh ...
P-Metric Sized Tires Description
245/50r16953typeloadindep-passengerttemporarylt-lighttruckspeedsymbolsectionwidth(millimeters)235245275construction(sectionwidth)ddagonal(bas)40sectionwidthsectionheight
Replacement tires should be of the same tire performance criteria (TPC) specification
number. This will ensure the same size, ...
Special Tools
Illustration
Tool Number/Description
207649
Rod Hairpins
547324
Flange Screws
EN-232
KM-232
J-21867-L40
Oil Pressure Check Adapter
...
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