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I have a 2005 vw jetta 2.0 gas engine and I replaced fuel pump fuel filter and camshaft sensor and it's still vapor locking in the heat i can drive for a hour then it starts vapor locking in the h

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  • Cars & Trucks Master
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Check that you actually have SPARK, during the "vapor lock" situation. Ignition overheat is common.

Posted on Jul 21, 2012

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Posted on Jan 02, 2017

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SOURCE: 2001 Chevy Astro Van

Needs Crank sensor. Good luck

Posted on Dec 28, 2008

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SOURCE: 2003 vw jetta tdi fuel filter

It is on the passenger side right behind the washer fluid fill tube. You can follow the fuel lines (look like 1/4" black tubes, some are clear) from the injector pump to it. It is a caniser a bit bigger than a normal looking oil filter and sits between the washer bottle and the metal that forms the wheel well. It is held in by a screw type clamp about half way down the cylinder. Probably isn't the fuel filter unless there is air in the lines to the injector pump or they didn't bother to fill the fuel filter up with diesel after putting it in. There is not a fuel pump in the tank in these cars so everything is sucked up by the injector pump and it needs to be primed properly.

Posted on Sep 11, 2008

jgwhomeequip
  • 1902 Answers

SOURCE: camshaft sensor

YES THERE IS A SENSOR, IT IS LOCATED ON THE FRONT OF THE ENGINE WHERE THE TRANSMISSION AND BLOCK BOLT TOGETHER NEXT TO THE STARTER AND ALMOST UNDER THE OIL FILTER COOLER

Posted on Feb 07, 2009

  • 1118 Answers

SOURCE: How do you know if the fuel pump needs to be

Best thing to do is a fuel pressure test, the car does not have to be running to do the test just turn on the key. You can rent the pressure tester at auto zone.

Posted on Apr 05, 2009

  • 17 Answers

SOURCE: i have 1990 chevy pickup 1500 4 wheel 350 eng.

It sounds like the engine is pulling fuel from the tank, and not replacing it with air, causing a vacuum to build in the tank. The vacuum, may build to the point that it resists the fuel pump's efforts to **** fuel from it. If the vacuum is sufficient, it may collapse the tank, or expand the fuel enough for the engine manifold vacuum to **** raw gas into the evaporative emissions control system, hence the cannister.

Replacing the fuel pump, and filter will both break this vacuum, and make it run well for a few more miles, until the vacuum builds again.

The tank is usually vented to relieve pressure and vacuum through the gas cap.

Basically, sounds like a bad gas cap.

Try driving with the cap loose or removed. If that fixes it, buy a new cap. Preferably a locking one, as the amount of fuel these trucks hold is pretty tempting to less than honest folks. My 1990 C2500 has a 34 gallon tank.

Coil?? with the other symptoms, how'd you come up with that?

Posted on Apr 08, 2009

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1 Answer

I have a 2005 vw jetta an I changed fuel pump fuel filter an it keeps vapor locking on me it will drive for about a hour n the heat an then it will start jerking an shut off at a stop light then i will...


The problem could be a clogged air vent in the gas cap, causing a vacuum in the gas tank . The next time this happens, loosen the gas cap and see if the problem goes away. If so, replace the gas cap.

Jan 24, 2018 | Cars & Trucks

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Car wont stay running after it starts, runs around 500rpms then dies out,sometimes wont start. replaced fuel filter, and the main relay fuse. this problem started after replacing my gas tank.


fuel injected cars cannot vapor lock, so not the issue, when they replaced the fuel tank did they replace fuel pump? It should have been, but 2 things come to mind, they pinched wires when putting tank in and it shorts sporadically shutting off pump, look around with light and trace wires looking for any breaks in plastic coating, or fuel pump is failing.

Jun 09, 2012 | 1994 Mazda Protege

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1993 nissan D21 hardbody replaced fuel pump and filter for pump, fuel filter, distributor cap and wires, plugs... truck was running fine for about a week, started to hesitate really bad, shaking truck...


Vapor lock? That might happen in a diesel engine, but I have never seen that in a gas engine.

It is more likely there is something obstructing the flow of fuel from the tank to the pump. That is not a very long distance to travel considering the pump is in the tank. This "over-working" can cause the pump to draw too much power tripping relays/breakers.

Just because the pump was replaced doesn't mean it is not bad. An obstruction could have also damaged the new pump if it is not a manufacturing defect.

I do understand that Nissan parts are kind of expensive and I would have the pump replaced just on principle since it is probably still under warranty.

I have seen a few similar situation with residual gas tank contaminants (sugar) damaging pumps. (fluid pumps tend to burn up when they don't have a liquid to cool the internal components) No flow is very bad for the life of a pump.

Furthermore, if such vapor lock does exist and can easily be bled off by relieving pressure from the last injector in the series. (gasoline fuel injectors are different from diesel injectors, so trapped air is typically forced through the system without any priming necessary)

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How to change a fuel pump in 2004 Volkswagen Jetta


IN THE GAS TAKE BY DROPPING THE TANK OR UNDER THE BACK SEATS IF IT THERE YOU WILL TO REMOVE THE SEATS OUT

Mar 07, 2011 | 2004 Volkswagen Jetta

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Truck just dies when going down the highway like it is out of gas. Replaced fuel filter and fuel pump...still having the same issue. Please help!!!


i have a 2000 nissan frontier that dies going down road,it has knock sensor,camshaft sensor&primary ignition circuit failure.had a new distributor.thanks for any help

Oct 29, 2010 | 2000 Nissan Frontier

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2006 jetta tdi oil change


Consult the Owner's Manual, or view the oil specifications on the fill cal or dipstick (usually the fill cap) located under the hood. Depending upon mileage you may not want to vary from manufacture specifications, or risk voiding your vehicle's warranty should any remain. The VW TDI's are typically high maintenance engines. I would strongly recommend staying with the manufacture's oil specifications, and do not overfill the oil in your vehicle.

Jun 02, 2010 | 2001 Volkswagen Jetta TDI

1 Answer

Need to locate fuel pump on 96 jetta


1996 Volkswagen Jetta 2.0L SFI 4cyl

On a Digifant fuel system, the fuel pump is mounted in a reservoir under the rear of the vehicle. The fuel filter is also in this area. The reservoir holds one liter of fuel and is supplied by a small transfer pump in the tank. The transfer pump can be replaced separately even though they are installed and removed as a unit.

The Motronic system uses two fuel pumps. The first is a small transfer pump to get the fuel out of the tank and the second boosts the fuel pressure to the necessary amount. The transfer pump is located inside the tank and the main pressure pump can be found under the vehicle. This transfer pump is located under the rear seat and is part of the fuel gauge sending unit. The main fuel pump can be found in the reservoir in front of the rear axle beam. There is a check valve inside this pump to maintain pressure in the lines, especially on hot days, to avoid vapor lock. The fuel filter is mounted to the side of the reservoir. This filter has no specified replacement interval and should be good for the entire service life of the vehicle. Whenever the ignition key is in the on position, the pump should run for at least two (2) seconds to pressurize the fuel lines. If the Engine Control Unit (ECM) does not see a signal from the Hall Effect sensor in the distributor it will shut the pump off. If a Hall Effect signal is present, the pump will continue to run as long as a signal is detected. It is this Hall Effect signal that signals the ECM that the engine is rotating therefore indicating that fuel is needed. The pump is operated via a relay that is controlled by the ECM. This relay is located in the vehicles fuse panel. The main contacts of the relay can be jumped to run the pump during testing.

More details in Autozone.com (free register).

Good luck (rated this help).

Sep 21, 2009 | 1996 Volkswagen Jetta

3 Answers

I have a 2002 VW TDI with 140,000 miles, but engine was rebuilt after broken timing belt, and trans was replaced under warranty at 98,000 miles. My problem is that the engine cranks eight or nine times...


Hello, I have something that might help you. If you know where your fuel line goes into the engine. I would let it sit overnight and then take the line loose. Then hold the fuel line into a bucket and have someone turn on the key in the car. This should tell you how fast you are getting fuel up to your engine. Your problem sounds alot like its not getting gas up to the engine fast enough. I would check these things:

1. Fuel Filter
2. A bent or crimped gas line. (From Engine Rebuild)
3. You could even have a blockage in your tank ventilation. This would cause a vapor lock not allowing the fuel pump to work properly.

Outside of a fuel issue from your previouse history It could be still in your timing. If you find my information helpful please rate me and have a great weekend! :>)

Jun 12, 2009 | 2003 Volkswagen Jetta TDI

1 Answer

Camshaft sensor


YES THERE IS A SENSOR, IT IS LOCATED ON THE FRONT OF THE ENGINE WHERE THE TRANSMISSION AND BLOCK BOLT TOGETHER NEXT TO THE STARTER AND ALMOST UNDER THE OIL FILTER COOLER

Feb 07, 2009 | 1997 Volkswagen Jetta

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