Question about Pontiac Grand Am

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2004 when first starting cold not getting fuel car runs fine after you get it started. replaced cank sensor, ignitionmodule,&camshaft sensor need to know about security system light is not on !

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  • Pontiac Master
  • 21,873 Answers

If it is not getting fuel when you first start it, nothing you replaced is involved.
Could be a faulty fuel pump relay or check valve in the pump.
You would need to check fuel pressure at the injectors before you first crank the engine. It should have at least 25-30 psi of pressure after sitting overnight. And the pump relay should power the pump for 3 or 4 seconds when you first turn the key switch on.

Posted on Jan 15, 2013

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6ya6ya
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Posted on Jan 02, 2017

GM Elec
  • 1000 Answers

SOURCE: 95 saturn won't start when hot

Blair, I would take a look at he TPS (throttle position sensor) located on the throttle body. In other words, it sounds as thought sensor when heated is changing its value to "open" or "shorted".
If the car starts OK when cold, use a hair dryer to heat the TPS when the engine is cold to see if you can duplicate the problem.
Also is the a service engine light on? Codes?
If you have a "digital volt/ohm meter" available you can read the variable resistance of the sensor when the problem occurrs to determine if the sensor is defective.

Posted on Feb 09, 2009

chryslertech
  • 115 Answers

SOURCE: Hard start when cold, running rich, poor fuel economy

Chrysler has a bulletin out for a simular condititon that involves replacing the pcm. Heres the bulletin number 18-005-04. This is only 1 possible cause , Fuel pressure, coolant temp sensor, thottle position sensor all can cause like problems. Seeing sensor values and fuel adaptives with a scan tool helps pin point problems.

Posted on Mar 08, 2009

  • 14036 Answers

SOURCE: check engine light comes on even though i replaced the faulty camshaft senors

take it back to shop because.some of the 2.8 v6 passat had 2 cam sensors.one for right bank and one for left bank.if shop already replace them.they need to remove code from computer.

Posted on Jun 01, 2009

  • 1 Answer

SOURCE: 2004 nissan sentra bad camshaft sensor, replaced

I am having the exact same problem. Did you get it running

Posted on Nov 21, 2009

alicantecoli
  • 22095 Answers

SOURCE: 2004 Hyundai Terracan, 2.5 turbo diesel, manual.

right renew the glow plug timer/relay if you put a meter on the glow plugs when cold and turn ign on (with help) it should supply power for a about 20 secs ,time depends on outside air temperature ,if all else fails then do a colin --- use a push button switch,wired to a relay so glow plugs can be operated by pushing the switch which you will mount on the dash ,cant beat a manual overide system

Posted on Dec 14, 2009

Testimonial: "alicantecoli provided accurate and correct advice for the diesel cold engine start problem I had."

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Freelander 04 does not start... but will crank.... pressure is at 53 ... i changes the camshaft sensor and crankshaft sens


When you turn the ignition on can you hear the fuel pump run for a second or so? If not could be faulty fuel pump.

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Car wont start without spraying starting fluid in it


I would check the compression. As air compresses it heats up. A trick I've used on cold diesels is to bump the starter trying not to let the motor actually turn over, so you keep compressing the same air. Do that a few times then try starting.

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Won't start in Cold weather in Warm Weather it's fine


without actually hooking up a scan tool and looking at the pid data i would say you have either a coolant temp sensor issue or intake air temp sensor issue.i have seen alot more coolant temp sensors bad than the intake air temp sensors tho.

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93 pontiac grand prix canks but wont fire has fuel pressure no security system on this car


Coilpacks or possibly crank sensor, also check to see if fuel system is bleeding air while vehicle is off

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Engine turns over, no start. Camshaft Sensor and CKT Sensor replaced


I would check the computer for trouble codes first.
Could be a problem in the wiring harness, or one of the components the cam and crank sensors "reads".
And of course you could have gotten a faulty part.
You might be able to take a meter and check each sensor while still on the engine.

Dec 11, 2012 | 2004 Jeep Grand Cherokee

1 Answer

My check engine light came on and I took it to get the code checked and I was told it was "misfire on start up". When I start the car it is very rough/bumpy but after sitting for about 5 mins...


Yes, this can be caused by several things. The usual problem is the Temperature sensor for the Cold Cycle Startup which speeds up the idle and enriches the fuel mix for the engine. There are 2 Water temperature sensors, one is for the dash gauge and the other is for the Engine Management system. In short, the Water sensor tells the Brain that the engine is cold and needs to run this cycle.

Both Autozone and Oreillys will scan a car for free and let you know what parts it needs. Try to get the Code number to post on this site. Sparkplugs are also a cause of cold misfires as well as slight leaks in the headgaskets. You should take it to a different place and get your car rescanned. The scanner Codes can identify an individual cylinder that is misfiring.

Bad fuel can also cause a misfire when you first start an engine. Overnight, the contaminants can settle to the bottom of the fueltank and you get a good dose when you first start the car. After the fuel circulates it is blended and you do not notice a problem in how the engine runs.

1. Start with observing if the idle is higher when cold- replace the water sensor for Brain to work
2. Get a rescan, follow their results. Check sparkplugs.
3. Put in fuel additive to remove moisture and clean fuel system.

This should solve your problem or the rescan will solve it.

Nov 18, 2010 | 2004 Ford Focus

3 Answers

My son's 2004 Kia Optima started stalling on the highway. 1st he noticed the RPMs drop then come back up. This happened several times before the car finally stalled. After a couple attempts, it...


Start with the simple and replace the fuel filter. The fuel filter should be replaced every 15,000 miles or once a year to ensure the fuel system is running 100%. Auto Zone will have the fuel filter and can give you the step by step instructions to getting the job done with common tools. If it's the fuel pump failure, you have not gotten the car restarted. Good luck and keep me posted, be glad to know you got your car running 100% again soon and please rate.

Jan 11, 2010 | 2004 Kia Optima

2 Answers

After changing the camshaft censor and the car still wont start what could be the problem also is there a fuse that needs to be replaced this is a 2004 pt cruiser the code say its the camshaft censor also...


P0016 crankshaft/camshaft timing misalignment
p0340 camshaft sensor

intermittent crankshaft sensor

PCM detects an error when the camshaft position is out of phase with the crankshaft position

Sep 26, 2009 | 2004 Chrysler PT Cruiser

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2004 Nissan Quest - Engine chatter/knocking


Ther e is a chance your injectors are leakin g down and there is excess fuel in the cylinders. Not a good thing. So, you fuel pressure and injectors need chkg. good luck

Jun 09, 2009 | 2004 Nissan Quest

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