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Old 07-29-2013, 04:01 PM   #1
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maybe intake problems

I have a 99 Camaro 3.8l 5 speed and when I fill my radiator up you can watch the water level drop down and in a couple minutes its dry. when this happens you can also hear water falling from the back of the motor I don't have any concrete to lay on and see where its coming from and I live in a swamp..does anyone know if its my intake gasket....and also I can crank it up for a minute or two and lift the hood and one of my injectors looks like its smoking but idk if its the injectors or the intake
please help
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Old 07-29-2013, 04:03 PM   #2
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So basically your whole block is draining in a couple of minutes? You really need to figure out a way to get under there and look. If it's draining that quick, I would think a freeze plug is popped out or there is a hole somewhere. I wouldn't think it's just a gasket leak because those tend to weep instead of drain in a couple of minutes.
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Old 07-29-2013, 04:34 PM   #3
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well theres water on my intake right underneath the injectors if that means anything
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Old 07-30-2013, 02:15 PM   #4
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It could be the lower intake. The first time mine went out it would puddle by the injectors. It was a slower leak. The second time coolant would stream out and be empty in minutes. Just replace the upper and lower intake manifold gaskets
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Old 07-30-2013, 02:42 PM   #5
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Go to local parts store and pick up a cooling system tester, you can pressurize the system and see exactly where it is leaking from. If the system does not even hold pressure then there is something major going on. If you need any instructions or help with removal steps let me know I can post here or email.
-adam
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Old 07-30-2013, 04:06 PM   #6
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Quote:
Originally Posted by 75camar0 View Post
Go to local parts store and pick up a cooling system tester, you can pressurize the system and see exactly where it is leaking from. If the system does not even hold pressure then there is something major going on. If you need any instructions or help with removal steps let me know I can post here or email.
-adam
If the water is pouring out as fast as he pours it in a pressure tester isn't going to help.
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Old 07-30-2013, 05:41 PM   #7
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thx y87bird00 and thx navy vet I appreciate it
another thing is how do I take the intake off it looks like a pain in the ***
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Old 07-30-2013, 05:50 PM   #8
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Taken from : intake gasket replacement - LS1TECH




3.8L Engine


Intake Manifold Replacement - Upper


Removal Procedure

1. Disconnect the intake air temperature (IAT) sensor electrical connector.
2. Remove the air intake duct.
3. Remove the drive belt tensioner.
4. Disconnect the fuel pressure regulator vacuum and EVAP emission canister purge harness from the following: Manifold vacuum source, Purge solenoid valve, Fuel pressure regulator valve
5. Disconnect the manifold vacuum source electrical connector.
6. Remove the manifold vacuum source screws.
7. Remove the manifold vacuum source from the upper intake manifold.
8. Disconnect the canister purge solenoid valve electrical connector and hose.
9. Remove the evaporative emissions canister purge solenoid valve.
10. Remove the idle air control (IAC) valve from the upper intake manifold.
11. Relieve the fuel pressure.
12. Disconnect the fuel feed pipe from the fuel rail.
13. Disconnect the fuel return pipe from the fuel rail.
14. Disconnect the EVAP pipe at the engine.
15. Remove the cruise control and accelerator control cables from the throttle body and bracket.
16. Remove the accelerator control cable bracket bolts and bracket.
17. Remove the ignition control module.
18. Remove the brake booster vacuum hose from the intake manifold fitting.
19. Remove the generator brace bolts.
20. Remove the generator brace from the lower intake manifold.
21. Disconnect the idle air control (IAC) valve electrical connector.
22. Disconnect the throttle position (TP) sensor electrical connector.
23. Disconnect the mass airflow (MAF) sensor electrical connector.
24. Remove the wiring harness from the rosebud clips at the fuel rail.
25. Remove the throttle body from the upper intake manifold.
26. Remove the thermostat and thermostat housing.
27. Disconnect the fuel injector electrical connectors. Important: Clean the dirt out of the injector bores with compressed air.
28. Remove the fuel rail nuts.
29. Remove the fuel rail.
30. Remove the upper intake manifold bolts.
31. Remove the upper intake manifold.
32. Remove the upper intake manifold gasket.


Installation Procedure

1. Install the upper intake manifold gasket.
2. Install the upper intake manifold.
3. Install the upper intake manifold bolts. [see attached diagram] Tighten in sequence the vertical intake manifold bolts (1-10) to 15 Nm (11 lb ft). Tighten the two water outlet bolts (11) to 27 Nm (20 lb ft). Tighten the side bolts (12, 13) to 30 Nm (22 lb ft).
4. Perform the following to install the fuel rail to the upper intake manifold: Using clean engine oil, lubricate the fuel injector O-rings. Install the injectors into the bores of the manifold. Carefully press the fuel rail down with the palms of both hands until the injectors are fully seated.
5. Install the fuel rail nuts. Tighten the fuel rail nuts to 8.5 Nm (75 lb in).
6. Connect the fuel injector electrical connectors.
7. Install the thermostat and thermostat housing.
8. Install the throttle body to the upper intake manifold studs.
9. Install the throttle body bolt and nuts. Tighten the throttle body bolt to 10 Nm (89 lb in). Tighten the throttle body nuts to 10 Nm (89 lb in).
10. Install the wiring harness to the rosebud clips on the fuel rail.
11. Connect the mass airflow (MAF) sensor electrical connector.
12. Connect the throttle position (TP) sensor electrical connector.
13. Connect the idle air control (IAC) valve electrical connector.
14. Install the generator brace to the upper intake manifold.
15. Install the generator brace bolts. Tighten the generator brace bolts to 25 Nm (18 lb ft).
16. Install the brake booster vacuum hose to the intake manifold fitting.
17. Install the ignition control module.
18. Install the accelerator control cable bracket and bracket bolts. Tighten the accelerator control cable bracket bolts to 16 Nm (12 lb ft).
19. Install the accelerator control and cruise control cables to the throttle body and bracket.
20. Connect the EVAP pipe at the engine.
21. Connect the fuel return pipe to the fuel rail.
22. Connect the fuel feed pipe to the fuel rail.
23. Install the idle air control (IAC) valve to the upper intake manifold.
24. Install the evaporative emissions canister purge solenoid valve.
25. Connect the canister purge solenoid valve electrical connector and hose.
26. Install the manifold vacuum source to the upper intake manifold.
27. Install the manifold vacuum source screws. Tighten the manifold vacuum source screws to 10 Nm (89 lb in).
28. Connect the manifold vacuum source electrical connector.
29. Connect the fuel pressure regulator vacuum and EVAP emission canister purge harness to the following: Manifold vacuum source, Purge solenoid valve, Fuel pressure regulator valve
30. Install the drive belt tensioner.
31. Install the air intake duct.
32. Connect the intake air temperature (IAT) sensor electrical connector.


Intake Manifold Replacement - Lower


Removal Procedure

Important: Remove the upper intake manifold in order to uncover hidden bolts on the front and left rear corners of the lower intake manifold.

1. Remove the upper intake manifold. Refer to Intake Manifold Replacement .
2. Remove the engine coolant temperature sensor.
3. Remove the lower intake manifold bolts.
4. Remove the lower intake manifold.
5. Remove the lower intake manifold gaskets and seals.


Installation Procedure

1. Apply GM P/N 12345336 or equivalent to both the front and rear intake manifold seals.
2. Install the intake manifold gaskets and seals.
3. Install the lower intake manifold.
4. Install the lower intake manifold bolts.
Important: The two lower intake manifold bolts are located under the upper intake manifold. They must be installed before the upper intake manifold.
5. Apply GM P/N 12345493 or equivalent thread lock compound to the bolt threads before installing.
6. Torque the lower intake bolts to specifications. [see attached diagram] Tighten the lower manifold bolts in sequence as shown to 15 Nm (11 lb ft).
7. Install the engine coolant temperature sensor.
8. Install the upper intake manifold.




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Last edited by Korndogg; 07-30-2013 at 05:52 PM.
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Old 07-30-2013, 05:50 PM   #9
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It's not bad. A few bolts are hard to reach, but with a good assortment of extensions your able to get them. Pick up a Haynes manual for the car. It gives a step by step. Things like the alternator, fuelrails, ECM, and alot of small plugs come off first. Then the upper intake. There are a few hidden bolts located in the lower intake.

Edit: well there you go. Lol. Thanks korndog.
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Old 07-30-2013, 11:53 PM   #10
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Jckkk,, go on ebay and buy the factory service manual for your year car,, I did this intake job last year and Haynes doesn't explain all and the factory service manual will and it shows everything step by step and hidden bolts n all,, I didn't have mine when I did it but once I got mine I said to myself ( man if had this I would have been done in a day ) ,, took me awhile,, I got mine on ebay for $60 bucks,,It comes with 3 volumes and I got all 3 books for $60,, killer deal,, yull love em !!
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Old 07-31-2013, 01:41 PM   #11
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thx for the info
i'll let ya'll know how it turns out
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Old 08-02-2013, 01:49 AM   #12
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where in florida are ya from ??
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Old 08-03-2013, 05:41 PM   #13
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Wesley chapel fl....
And I need a freeze plug and a head gasket..not an intake gasket
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Old 08-03-2013, 05:44 PM   #14
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Quote:
Originally Posted by jckkk View Post
And I need a freeze plug

Quote:
Originally Posted by Korndogg View Post
If it's draining that quick, I would think a freeze plug is popped out or there is a hole somewhere. I wouldn't think it's just a gasket leak because those tend to weep instead of drain in a couple of minutes.




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Old 08-04-2013, 03:02 AM   #15
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ahhh glad you found the problem,, sux its not intake gasket,, would have been so much easier on ya !
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Old 08-06-2013, 01:01 PM   #16
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How do I get it out???
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Old 08-06-2013, 01:03 PM   #17
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^^^ thats what she said
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Old 08-06-2013, 10:45 PM   #18
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Ha, a lot of wrench turning, lol
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Old 08-14-2013, 02:40 PM   #19
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my oil fill cap has what looks like a light color peanut butter substance on in and all down the fill tube... I know its what mixed with oil but not sure on what caused it...any advice???
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Old 08-14-2013, 06:03 PM   #20
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my oil fill cap has what looks like a light color peanut butter substance on in and all down the fill tube... I know its what mixed with oil but not sure on what caused it...any advice???
That's caused by water vapor in the engine.
Usually results from a lot of short trips where the engine never gets fully heated up enough to evaporate it.
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