TOYOTA PREVIA 91-97 REPAIR MANUAL

GENERAL INFORMATION AND MAINTENANCE 1-23

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Fig. 54 The PCV valve is recessed in the grommet on the valve

cover

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Fig. 55 Inspect the grommet before installing a new valve

c. Remove the 4 bolts and right front seat.

d. Remove the 2 bolts retaining the right front seat leg.

e. Remove the jack and tool bag.

f. Unbolt and extract jack holder.

g. Remove the 9 bolts and right engine service cover.

2. Locate the PCV valve in the No. 2 cylinder head cover and remove it
   by pulling it upward.


3. Pull the PCV valve off the hose. If applicable, slide the clamp up the
   hose first.
   To install:


4. Slip the hose back onto the proper end of the PCV valve. Secure the
   clamp if eguipped.


5. Press the valve into the retaining grommet in the cylinder head
   cover.


6. Install the right side engine hole cover:
   a. Attach the cover and tighten the bolts to 10 ft Ibs. (14 Nm).
   b. Install and tighten the jack holder bolts to 10 ft. Ibs. (14 Nm).
   Install the tool bag and jack.
   c. Position and secure the right seat leg to 29 ft. Ibs. (39 Nm).
   d. Position the seat assembly into the vehicle and secure with the
   mounting bolts. Tighten the bolts to 29 ft. Ibs. (39 Nm).

e. Attach the seat belt to the front floor panel and tighten to 31 ft Ibs

(42 Nm).

f. Install the scuff plate and secure.

Evaporative Canister (Charcoal Canister)

SERVICING

» See Figure 56

The canister recycles the fuel vapor from the fuel tank. The activated

charcoal element within the canister acts as a storage device for the fuel

vapors at times when the engine operating conditions do not allow efficient

burning of the vapors.

The only reguired service for the canister is inspection at the intervals

specified in the Maintenance Chart at the end of this section. If the charcoal

element is saturated, the entire canister will reguire replacement. Additional

testing of the evaporative emission system can be found in Section 4.

1. Label and remove the vacuum lines leading to the canister.


2. Unfasten the retaining bolts from the canister.


3. Pull the lower hose off the tube attached to the lower portion of the
   canister.


4. Inspect the case for any cracking or damage.

Fig. 56 Inspect the canister for cracks or damages at these

points

Battery

PRECAUTIONS

Always use caution when working on or near the battery. Never allow a

tool to bridge the gap between the negative and positive battery terminals.

Also, be careful not to allow a tool to provide a ground between the positive

cable/terminal and any metal component on the vehicle. Either of these

conditions will cause a short circuit, leading to sparks and possible per-

sonal injury.

Do not smoke, have an open flame or create sparks near a battery; the

gases contained in the battery are very explosive and, if ignited, could

cause severe injury or death.

All batteries, regardless of type, should be carefully secured by a battery

hold-down device. If this is not done, the battery terminals or casing may

crack from stress applied to the battery during vehicle operation. A battery

which is not secured may allow acid to leak out, making it discharge faster;

such leaking corrosive acid can also eat away at components under the hood.