I am the one who has the 88 chevy s10 and its the 2.5l 2 wheel drive and its the line that is that is on the side of the intake manifold in the back i would show you a pick and email it to you. y=my email is [email protected]

Engine cowling must be removed to see...trace vacumn line to fan side of intake manifold...the pcv is inside a small black housing...your auto parts store can show you a picture...hope this helps.

2.0 or 2.5?
here is 2.0
if you need more just let me know

1. Disconnect battery ground cable, then isolate cable end with electrical tape or equivalent.
2. Remove air intake system and fuel line mounting bracket.
3. Disconnect throttle cable.
4. Disconnect coolant line from idle air bypass air valve.
5. Disconnect coolant and vacuum lines from throttle body. Mark vacuum lines for installation reference.
6. Disconnect throttle position sensor connector.
7. On models with automatic transaxle, disconnect idle switch connector.
8. Disconnect brake booster vacuum line from back lefthand side of intake manifold.
9. Disconnect EGR temperature sensor connector, if equipped.
10. Disconnect speed control vacuum line from back righthand side of intake manifold.
11. Disconnect EGR solenoid connectors.
12. Remove PCV valve from cylinder head cover.
13. Raise and support vehicle.
14. Remove intake manifold support bracket, then the EGR pipe from intake manifold.
15. Lower vehicle and remove intake manifold attaching bolts and nuts.
16. Remove intake manifold and discard gasket.

Intake Manifold Tightening Sequence

1. Reverse procedure to install. Torque bolts and nuts in sequence to 14-19 ft lb.

My name is Tim and I work for a company called AutoEcu1 We specialize in many different controllers such as abs ebcm ecu ecm tcu tcm climate controllers dash clusters speedometers and so much more. If you need further assistance on this or any other vehicle please post here or call us at 800 921 9060 good luck!
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Have you tried checking with autozone? They can tell you where it is from their computer. I have a 99 k2500 and my fuel pressure regulator is located under my intake manifold, my fuel pump relay is under the hood on the drivers side over the wheel well. I Take It you are having problems starting your truck. Can You hear your fuel pump when you turn the key? Have you checked to see how much fuel pressure you have ?

Here is the removal procedure, and the procedure is the same for both the V-6 and the V-8 Vortec engines. Also, be certain to put engine oil on the "o"-ring seal for the fuel injector assembly before installing the upper intake. Let me know if you require any further assistance.

REMOVAL:

1. Disconnect the battery negative cable assembly from the battery negative terminal.

2. Remove the air cleaner assembly.

3. Remove the wiring harness connectors and the brackets and move aside.

4. Remove the throttle cable and the bracket from the upper intake manifold.

5. Remove the cruise control cable, (if equipped).

6. Remove the fuel lines from the intake to the rear of the block.

7. Remove the ignition coil and the bracket.

8. Remove the upper intake manifold.

INSTALLATION:

1. Install the upper intake manifold gasket.

2. Install the upper intake manifold. Use care not to pinch the injector lines between the upper and lower intake manifolds.

3. Install the upper intake manifold bolts. Note the marks made at disassembly for proper stud location. Install the two corner studs first in order to help align the two halves. NOTE: Other than the two torque passes listed below, the OE Manufacturer did NOT address or supply a bolt tightening sequence for the upper Intake Manifold for this model year, or other model years where this 2 piece manifold setup is used. A "Play It Safe" final tightening sequence would be to tighten from the center most bolts to the outer most bolts.

4. Tighten the bolts in two steps: a. Tighten the bolts on the first sequence to 5 Nm (44 inch lbs.). b. Tighten the bolts on the final sequence to 10 Nm (88 inch lbs.).

5. Install the purge solenoid and bracket.

6. Install the ignition coil and bracket.

7. Install the PCV hose et the upper intake manifold.

8. Install the fuel lines from the intake at the rear of the block.

9. Install the cruise control cable (if equipped).

10. Install the throttle cable and bracket from the upper intake manifold.

11. Install the wiring harness connectors and brackets.

12. Install the air cleaner assembly.

13. Connect the battery negative cable assembly to the battery negative terminal. - Tighten the bolt to 15 Nm (11 ft. lbs.).

Bonneville, LeSabre, Park Avenue 2000-2005 Intake Manifold - Removal & Installation

3.8L Engine
VIN 1 Engine

1. Before servicing the vehicle, refer to the Precautions section.
2. Relieve the fuel system pressure.
3. Drain the cooling system.
4. Remove or disconnect the following:
   Negative battery cable Supercharger Thermostat housing Exhaust Gas Recirculation (EGR) tube at the intake manifold Engine Control Temperature (ECT) sensor Intake manifold

To install:

1. Install or connect the following:
   Intake manifold with new gaskets. Torque the bolts, working from the center out, to 11 ft. lbs. (15 Nm). ECT sensor connector EGR tube to the intake manifold Thermostat housing Supercharger Negative battery cable
2. Refill and bleed the cooling system.
3. Run the engine and check for leaks and proper engine operation.

VIN K Engine

1. Before servicing the vehicle, refer to the Precautions section.
2. Disconnect the negative battery cable.
3. Drain the cooling system.
4. Relieve the fuel system pressure.
5. Remove or disconnect the following:
   Fuel injector sight shield Air inlet duct Spark plug wires from the right side Manifold Absolute Pressure (MAP) sensor Vacuum lines from the intake manifold Fuel lines Fuel injector electrical connectors Fuel regulator vacuum line Fuel rail from the intake manifold Exhaust Gas Recirculation (EGR) heat shield Throttle cable bracket from the cylinder head mounting bracket and the throttle body cables Throttle body support bracket Upper intake plenum and gasket Thermostat housing Electrical connector from the Engine Coolant Temperature (ECT) sensor Drive belt tensioner assembly EGR valve outlet pipe Lower intake manifold
   
   
   Fig. Exploded view of the intake manifold and related components-3.8L (VIN K) engine
   

To install:



Fig. Upper intake manifold torque sequence-3.8L (VIN K) engine



Fig. Lower intake manifold torque sequence-3.8L (VIN K) engine

1. Install or connect the following:
   Intake manifold using new manifold gaskets. Torque the bolts in sequence to 11 ft. lbs. (15 Nm); then, re-torque to 11 ft. lbs. (15 Nm). EGR valve outlet pipe Drive belt tensioner assembly. Torque the tensioner bolts to 37 ft. lbs. (50 Nm). Electrical connector to the ECT sensor Thermostat housing Upper intake plenum. Torque the intake plenum bolts to 88 inch. lbs. (10 Nm). Throttle body support bracket Throttle cable bracket to the cylinder head mounting bracket and the cables to the throttle body lever EGR heat shield Fuel rail. Torque the fuel rail bolts to 88 inch. lbs. (10 Nm). Fuel lines Fuel regulator vacuum line Fuel injector electrical connectors Vacuum lines to the intake manifold MAP sensor Spark plug wires Fuel injector sight shield and air inlet duct Negative battery cable
2. Refill and bleed the cooling system.
3. Run the engine and check for leaks and proper engine operation.

Hope this help (remember rated this).

back side of the drivers side firewall behind the intake manifold ...when in doubt follow the fuel lines up until you find where it screws into it should be round and mainly green in color or gray about 2 " in diameter

it could but- check passenger side front where heater core line go into manifold right behind alternator the hose line is connected by a press clip into an alloy fitting this fitting gets eaten away by anti freeze and hose angle pulls back on fitting the part is $18 at dealer and is screwed into manifold use caution if ur r going to replace at very edge of aluminum manifold---and check ur water pump bolts the 2 longer ones should have a lock sealant on them they bolt in thru a water jacket

2bbl intake will not fit 87-95 small blocks heads are diferent from pre 86.the center bolts on your manifold are angled different than the front and back bolts.your 2bbl manifold has the same angle bolts front to back.i converted my buddies 89 to carb,had to make adapter plate for carb.but to make a long story short there is a lot of power loss and fuel economy your better of with tbi.

you shoud have the firing order molded on the intake manifold just in front of throtle body. the firing order is 1-8-4-3-6-5-7-2 ......cylinder numbers on your left side are (driver side) 1-3-5-7 your right side is 2-4-6-8... move your crank shaft pulley until "0" degrees on the mark. open distributor cap see wich one is the rotor pointing to thats number plug number one.....you have question ask me writye me back.

replaced faulty trans modulator, which allowed trans fluid to enter manifold, connecting tube, saturate air filter, and seep into oil pan thru engine via vacuum line from the modulator