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Crank no start . See oil and gas in spark plug .low fuel pressure. Is it fuel pump need replace.please help

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Does it have spark at the plugs ? if it does then check the fuel pressure, if it is low install a new pump and change the plugs and try to start.

Posted on Dec 15, 2016

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2003 Buick rendezvous.turns over will not start. Replaced fuel pump,both crank sensors,timing chain,plugs, wires,fuel pressure regulator. What else need I check?


Did you check the oil? This vehicle has a low oil sensor that will disable the ignition if more than a quart low. Check for blown fuel pump fuse. Check for bad fuel pump relay. Never replace this many parts without first performing an OBDII scan. The stored fault history is always your guide to part replacement. You have replaced a lot of expensive parts that you probably did not need. Always try the cheapest fixes first. OBDII scan is free at Autozone. GM vehicles are prone to Anti-Theft function that can disable the ignition (Not reading the chip in the key). The OBDII scan will show these problems too. Also reset the Rollover safety switch, it can disable fuel pump function.

May 16, 2017 | Buick Cars & Trucks

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Car stopped running while driving


run the fault codes and check for cam/crank position sensor . check that the cam shaft is turning (broken cam belt)

Jan 17, 2014 | Volkswagen GTI Cars & Trucks

1 Answer

I was driving and car stopped I was low on oil and had been running the car on low fuel a lot car won't start I got codes p0340 p0113 p0123 I replaced starter and p0340 what could be the problem?


PO340 is the camshaft sensor, circuit malfunction

PO113 is intake air circuit--high input

PO123 is TPS sensor circuit A high input

Running your car low on oil is never good, how low was it---did it start knocking or did it overheat?
Running on low fuel is never good either, did you run out of gas and burn the fuel pump up?
Why did you replace the starter? Will the engine turn over and try to start? If your engine will crank over, check for spark at the plugs and check to see if you have fuel pressure at the fuel rail...This would be the best place to start troubleshooting.

Jul 12, 2011 | 2004 Dodge Stratus

2 Answers

Car wont start in very cold weather...new battery mechanic says car starts so not sure if its the starter because the car starts now


You turn the key to start and hear the starter motor crank the engine, but when you release the key, the cranking stops and there is silence. This means that the battery and starting motor are working properly, but the engine is not firing. If you continue cranking the engine over in this way, the battery will eventually run down and will need to be recharged, but the battery and starter are not the cause of your problem.
There are a number of causes for this type of no-start condition, the most common being that you are simply out of gas. Assuming that you have fuel in the tank, you will need to go through a series of tests to determine what is causing the problem. The testing procedure is as follows:---

Spark:---------An easy way to test for spark is with an inexpensive spark tester. This is a device that is readily available at most auto supply stores. You use it by simply holding it next to a spark plug wire. If you see the neon lamp flashing while someone cranks the engine, then you have spark and should move on to checking for fuel. If there is no spark, or a very weak spark, you will have to replace the spark plug or the coil pack.It has to be checked.

Fuel:
First step here is to listen for the fuel pump running inside the gas tank. When you turn the key to run, you should easily hear the pump come on, run for a few seconds to build fuel pressure, then turn off. If you do not hear it, it could mean that the fuel pump or circuitry is bad. (Fuel pump failure is a common problem).

Fuel injected cars are very sensitive to proper fuel pressure. If the pressure is off, even by a few pounds, it will cause noticeable performance problems, or a no-start condition. To check for proper fuel pressure, you will need a fuel pressure gauge that is suitable for your type of system. Or you can also get the fuel pressure tested at local car garage, If fuel pressure is low then its a fuel pump and fuel filter related problem.

Compression:

If you know that you have spark and fuel, the next step is to check for compression. For this, you will need a mechanic's grade compression tester that will screw into a spark plug hole. You will need to remove the spark plugs and use the compression tester to test the compression on each cylinder. If the compression is very low on all cylinders, that is a sure sign that the timing belt (or timing chain depending on the engine) has failed and will have to be replaced.

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This troubleshooting will let you know the problem.Thanks.

Jan 25, 2011 | 2005 Hyundai Tucson

1 Answer

I have a 99 gmc seirra , we have replaced the starter, crank sensor, new battery, clean oil, and filter. The truck will turn over but will not fire. There seems to be no spark, there is gas at the fuel...


You need to hook a fuel pressure gauge to it. It has to have 55 psi or it won't run. Have you checked for spark at one of the plug wires. I'm guessing low fuel pressure, fuel pump.

Jul 21, 2010 | 1999 GMC Sierra

3 Answers

I have a '97 chevy tahoe. the engine cranks, but won't start. checked trouble codes & got cycliner misfire, O2 sensor, & catalytic converter codes. i've replaced plugs & wires. still won't...


first, check all the fuses
did you check to see if there's spark at spark plugs?
did you check the fuel pressure? you need to do that to isolate fuel and ignition system.
if there is no fuel then check for fuel pump operation
if there is no spark then check the ignition system (coil, module and wirings)
if you don't have either one then the problem is in the computer system such as crank sensor, and computer itself

Mar 28, 2010 | 1997 Chevrolet Tahoe

3 Answers

The fuel pump pumps but on start up it dies


Flel regulator will only affect max fuel pressure only will not cause it to not start. try replacing fuel filter first if still does not get fuel then you need to see if it is fuel related or if you have a spark at the spark plugs, pull off a spark plug boot and put screw driver in it hold 1/4 inch away from bare metal and crank engine if you get a spark then it's fuel relateed if no fuel it can be the crank shaft sensor or the cam shaft sensor. let me know if it has fire.

Aug 30, 2009 | 1995 Ford F250

1 Answer

Was low on oil and wouldnt start. put in oil and still wont start. is sitting on a hill


Low on oil will NOT ever prevent an engine from starting - unless it is a small engine with oil shutoff.

Will not start is a fuel or spark problem...
So. start with fuel:
1: level in gas tank
2. fuel pump delivering it to the engine.

If you can get some gas in a squart bottle and spray it into the intake - and have some one crank it... if it fires, then it is gas and troubleshoot 1 and 2 above...
If it will not fire with gas injected directly into the intake, it may be spark.

1. Pull a plug wire and hold it near the gngine block. Have someone crank the engine and check for spark...
If none, look for bad coil, voltage to coil, etc. that circuit..l.

2. If spark at the wire (from 1 above) then assume timing... with out adequate oil, you may have distroyed the timing belt/chain tensioner (it uses oil pressure to stay tight). Check the timing (both ignition and cam). If the belt is gone, nothing will fire.

Best of luck - lots of possibilities here - so I just want to get you started in the right direction (and away from the oil issue) - besides, you said that you added oil - but not too much - since you cannot get a decent oil level check on a hill!!

Aug 05, 2008 | Ford Econoline Cars & Trucks

4 Answers

2000 chevy blazer stalled and won't start back up


I would say the car is not getting any fuel. you could try replacing the fuel filter which is cheap. It could also be the fuel pump which is probably in the tank.(try tapping the gas tank with a hammer lightly) If the car starts then it is probably the pump. The last thing i think it could be is that is isn't getting any spark. Take the spark plug wire off the plug itself and put a screwdriver in the hole and make sure it is touching the metal part of the plug. Have someone try to start the car and hold the screwdriver near a piece of metal, if you see a blue spark then the car is getting spark, if you see nothing then you probably have a bad coil.

Jun 24, 2008 | 2000 Chevrolet Blazer

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