Vacuum hose connector 2004 Oldsmobile Alero v6

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Sep 192017


Oldsmobile Alero

There is a vacuum connector that pulls air in but whatever line connected to it broke off and disappeared. No one can tell me where it’s supposed to connect to. Autozone employees are all saying it’s definitely affecting the engine.  Here are the images:

vacuum hose loose

shows position on the front of the engine

vacuum hose

Just a closer picture

Thanks. Driving us crazy.

Vacuum hose connector

It is my opinion that this hose goes to the MAP sensor. I am guessing the upper intake has been removed and when put back on the hoses were not set correctly. I am also going to guess if you extract the diagnostic trouble codes from the computer you will find a code indicating a MAP sensor issue. Use the diagram below to help assist in locating the MAP sensor. I think (3) is the end of the hose in the image you provided.

MAP sensor diagram

Sep 182017

Chevy Suburban 2005

I am getting code P0306 NO. 6 Cylinder misfire. I have changed out the injector, coil, spark plug wire & spark plug. My car is still running rough and code still shows up. What is wrong?

Chevy Code P0306

Chevy Code P0306 means that the cylinder 6 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 6.

When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the Crankshaft Position (CKP) sensor signal to vary, the Engine Control Module (ECM) can determine that a misfire is occurring.

Chevy Code P0306 Possible causes

  • Faulty spark plug 6
  • Clogged or faulty fuel injector 6
  • Faulty ignition coil 6
  • Fuel injector 6 harness is open or shorted
  • Fuel injector 6 circuit poor electrical connection
  • Ignition coil 6 harness is open or shorted
  • Ignition coil 6 circuit poor electrical connection
  • Insufficient cylinder 6 compression
  • Incorrect fuel pressure
  • Intake air leak
Sep 182017

2009 Toyota Corolla

I need a ignition switch replacement diagram for the above car. please email it to me to:

Ignition Switch Removal




Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.








ignition switch diagram 2009 Toyota Corolla

Ignition Switch Installation

  1. Install in reverse order
Sep 182017

2006 Nissan Almera

Will not move

My car starts alright but will not move. The previous day my first and second gears took a long time to accelerate and there was a smell of something burning (clutch probably) after my drive.

Sounds about right. If the clutch is slipping or worn out the vehicle will not want to move. Something you can try. Hold the brake and let out on the clutch pedal. It the engine does not die, the clutch is shot.

Sep 142017

1999 Opel Frontera

Loses power

Hello, what could be the cause when I start the engine and press on the throttle hard it withdraws or loses power and sometimes turns off. It only works when I press on the throttle very gently until it revs fully. It also withdraws when I engage the gear and start driving. I cant press on the throttle with force. My car has a manual transmission.

Lack of fuel would be my first thought. If the check engine light is on, extracting the diagnostic trouble codes would be the best first approach to this issue.

There may be a failing sensor or a vacuum leak involved and getting the codes would assist in pointing in the right direction. Just about any local auto parts store will pull the codes for free. Once you have the codes, post them below in the comments.

Sep 142017

Ford F250

Hard Start

I have had slow start problems since I bought this truck. I thought I had it fixed a couple of times. The first time was adding fuel additive, which led me to think I just had dirty injectors. The second I changed the glow plugs and harness, but that only lasted a short time, and I think i might have moved an airbubble and just got lucky on the few good starts it had. Am I on the right track? Would air in the fuel lines cause it to hard start?

Yes. Air in the fuel lines will make it difficult to start and may even cause the engine to die.

Fuel Delivery Problems

To start and run properly, injector timing has to be accurate. A quick visual inspection will tell you if the timing marks are lined up. Refer to the vehicle manufacturer’s timing procedure if you suspect timing is off or the pump has been replaced recently. On newer diesels with electronic injection pumps or direct injection, you’ll need a scan tool to make any changes.

Any air in the fuel can also be a cause of hard starting or a no start condition. Air can make the engine die after it starts, and make restarting difficult. Air can enter the system through any break in the fuel line or via a bleedback condition.

Determine if air is the problem

To determine if air is the problem, install a clear return hose on the return side of the injection pump. Crank the engine and observe the line. Air bubbles in the fuel would tell you air is entering the inlet side of the pump. The injection pump itself is usually not the source of the air leak, so check the fuel lines and pump.

A worn or clogged pump can also make an engine hard to start. If the condition has been getting steadily worse accompanied by a loss of power, and the engine has a lot of miles on it (more than 75,000), the underlying cause may be a pump that needs to be replaced.

Before condemning the pump, though, check the fuel filters. Clogged filters can cause fuel restrictions that prevent the pump from doing its job properly. The primary water separator/fuel filter usually needs to be changed about every 30,000 to 40,000 miles, and the secondary filter about every 20,000 to 30,000 miles. Newer fuel systems with a single filter usually require service about once a year. If the filter has been neglected, chances are it may be restricted or plugged.


Sep 132017

Mercury Sable

I am replacing the fuel pump on my sable and wanted to install a maintenance hatch under the back seat. On examination, I noticed fuel lines running in that area, if I accidentally nicked one of those with the grinder is that likely to explode, I am working outside.

Will gasoline explode

No. Gasoline liquid will not explode, however gasoline fumes will. And if there is fuel pressure in the lines the fuel will spray all over and will catch fire.

gasoline combined with air will explode, gasoline won’t burn without air the fumes mixed with air will explode but the gasoline will burn.

Source: WikiAnswers

Sep 132017


Noise when I’m driving

Noise when I’m driving but not at idle. I’ve been told its probably a gearbox bearing or gearbox issue. The gears change very smoothly and the car is running well except for this noise.
Is this a serious problem and expensive?? Thanks

About the only way to know for certain what it would take to repair the transmission would be to take it apart and inspect it.

Sep 132017

1992 Pontiac Firebird

Electrical popping sound while starting

I had a starter replaced on my 1992 Firebird. Now somethings not right. When I start my car with new starter, I hear a electrical popping sound while starting. Any ideas? I think there’s one way to install the starter, only 2 wires…what’s else could it be? Touching wires?

Loose connections and or worn wiring rubbing against the block.


Sep 132017

Hyundai Santa Fe

Fluctuating idle

Hi. I have a Hyundai Santa Fe 2009 3.3L model with a fluctuating idle, stalling issues and sometimes the engine switches off while driving, but starts up right away when restarted. Ran a scan as shown in the video below to monitor the TPS (blue line), Pedal sensor (green line), MAF (red line) and the MAP (brown line) sensors while the engine was running (beginning from idle to me depressing the accelerator up to 2,600 rpms and back down).
I noticed the MAP was highly unstable. Is that normal?
At point 318 on the horizontal axis, the engine switched off on its own, and both the TPS and MAP spiked (not sure if that’s what it’s supposed to do)!

  1. What is the relationship between the MAP and the TPS?
  2. Does the TPS determine the MAP reading or vice-versa?
  3. Can a MAP reading indicate engine compression loss?


Seems like a vacuum leak to me. Were there any check engine light codes?