Question about 1999 Chevrolet Silverado 1500

2 Answers

How can you check for a intake leak? vaccum test? OSBII ? I had a cool weather skip that was getting worse, I replaced 02 sensors upper both sides, rotor button was broke so I replaced rotor, cap , wires and plugs and its got worse, and its burning very rich mainly on drivers side.

Posted by on

  • tapinracin20 Nov 06, 2010

    Problem solved, shorted dist. cap.

×

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Chevrolet Master
  • 2,422 Answers

You would need a vacuum gauge to check this you can get one for 25 -40 dollars at parts stores But if you had a vacuum leak it would run leak not rich Pull out one of your spark plugs if its dark and kind of wet its rich if its white and dry its leak it should be like a tan color withno little spots on it But it realy sounds more like a fuel trim problem i would put it on a scaner first and see if you get any codes hope this is of some help to you

Posted on Nov 05, 2010

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 613 Answers

Try spraying WD-40 on the intake CAREFULLY! And see if temporary runs better. If so then changed the gasket/hoses. Other wise check the pcv valve and other items on the block that have vacuum hoses.

Posted on Nov 05, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Diagnostic codes for a mitsubishi eclipse 2001 v6 p00100. mean


It is a MAS Airflow Sensor code. The sensor is either disconnected, damaged or the wiring to it is damaged. If you have installed custom/performance intake then that would be your issue, if not then you need to check the MAS Airflow sensor and wiring.

Jun 09, 2015 | 2001 Mitsubishi Eclipse

3 Answers

Low Coolant Problem(Also electrical)


you definitely have a leak somewhere or worse headgasket leaking by some coolant or the waterpump leaking through the weep hole. but to answer your question (depending on the car type and model) theres a sensor in the reservoir canister that may be bad. hope that helps..

Mar 02, 2015 | 2004 Pontiac Grand Am GT

2 Answers

2005 FORD ESCAPE OVERHEATING


Did you have the head checked for warping and crack tested. because combusting gas is finding its way into the cooling system. have you replaced the thermostat .

Mar 07, 2014 | 2005 Ford Escape

1 Answer

Antifreeze is leaking on the passenger side of the car behind the engine where could the leak be coing from


For this types of problem,check the help link provided below.Click the link below to go through its troubleshooting procedure:-----Antifreeze leaking from front of engine near Air intake? http://technoanswers.blogspot.in/2012/02/antifreeze-leaking-from-front-of-engine.html
----------Antifreeze leaking from freeze plug on throttle body? http://technoanswers.blogspot.in/2012/02/antifreeze-leaking-from-freeze-plug-on.html
---------How to locate the vacuum leak? http://howtobyme.blogspot.in/2012/01/how-to-locate-vacuum-leak.html
-----------How to Perform Car AC Leak detection Test? http://repairhelpcenter.blogspot.com/2011/11/how-to-perform-car-ac-leak-detection.html
------------Common Causes of Car Oil Leaks? http://schematicsdiagram.blogspot.com/2011/12/common-causes-of-car-oil-leaks.html----------- Troubleshoot Car Oil leak? http://schematicsdiagram.blogspot.com/2011/12/troubleshoot-car-oil-leak.html
-----------The plastic housing which goes to the upper radiator hose is cracked and leaking?

http://schematicsdiagram.blogspot.com/2011/12/plastic-housing-which-goes-to-upper.html

---------------------------
Radiator leaking? http://repairhelpcenter.blogspot.com/2011/12/radiator-leaking.html
-----------This will help.Thanks.

Feb 08, 2012 | 1997 Buick Century

1 Answer

How do I find a coolant leak in my 2001 Dodge Intrepid 3.2L? It does not appear to be the hoses, but I notice the passenger side of the radiator is wet. Noticed puddle of coolant under passenger side of...


HI, The easiest way to find a cooling system leak to preform a pressure test. This test requires the use of some special equipment so I will just give you some common areas of these engines that leak. 1. check the upper radiator hose at the radiator. the plastic tank cracks sometimes. 2. check around the thermostat housing. 3. The worse for last there is a coolant passage tube that runs under the intake manifold almost impossible to see without taking things apart. but when it leaks the coolant seems to show up n the floor on the passenger side back by the firewall. I hope these help and you can locate the problem. Be careful when looking for these problems when the engine is hot you can get burnt. Good luck

Aug 27, 2010 | 2001 Dodge Intrepid

1 Answer

Need to replace intake manifold how do you do this


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

    a5adffa.jpg
    Fig. Exploded view of the intake manifold and related components-3.8L (VIN K) engine
To install:


140d431.jpg
Fig. Upper intake manifold torque sequence-3.8L (VIN K) engine


4950e4f.jpg
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).

May 17, 2010 | 2001 Pontiac Bonneville

1 Answer

Lean bank 1 code 0171 running to lean i change the 02 sensor and maf sensor and check engine light comes back on


Check for a lower intake leak somewhere air is getting in on 1,2,3. Check for leaking vaccum hoses also.

Mar 23, 2009 | 2005 Chevrolet Equinox

1 Answer

Running Lean


if the engine is still running lean, I would replace the Oxy sensor (s),
Then check for a vaccum leak, I found a very large leak on my intake manifold... there is a cap on a nipple on the engine side lower intake manifold (very difficult to get to) and I could not see it until I removed the intake and looked at it.
On my engine, this cap made of rubber was rotten and leaking vaccum.

This helped me 100%

Oct 22, 2008 | 1999 Ford Escort

5 Answers

Bank 1 & 2 running lean


The lean condition is caused from the upper intake gaskets and isolation bolts not sealing properly due to time and poor sealing qualities from the factory ther was a service bulliten for this through ford to replace the gaskets,bolts,vaccum line,and lh side valve cover for this concern the oil was getting onto the rubber contaminating it causing a vaccum leak. If you never had the tsb done i would start there, also if there is high milleage on the vehicle i would also clean the maf sensor and resedt kam.

Oct 16, 2008 | 2001 Ford Windstar

Not finding what you are looking for?
1999 Chevrolet Silverado 1500 Logo

163 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

75066 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7754 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...