Question about 2005 Chevrolet Suburban

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New battery, new fuel pump. All electrical systems work fine, every time the outside temp is less than 30 degrees, vehicle will not start. Turns over fine, just will not start.

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Have a block heater installation the day light things warm up at night it gets really dry cold that's when the block heater keeps the engine warm enough to start.

Posted on Jan 03, 2011

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Does the fuel system operate off the battery and how will i know if its the battery or the fuel pump


Does the starter spin the engine normally when you turn the key to the start position ? Do the headlamps shine bright ? If any of these work correctlly the battery is fine . If the engine turns over normally an doesn't start an run it doesn't mean the fuel pump is bad either .There could be any number of thing's wrong , testing first electrical circuits of igintion system , fuel system . Hooking up a fuel pump pressure gauge , pull a plug wire an check for spark . I'd say your best bet would be to take your to a qualified repair shop before you replace parts you don't need .

Jul 17, 2016 | Cars & Trucks

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2002 pontiac grand am not starting


My brother's 02 grand am 2.2L would not start. Car has spark, fuel pump works,
good battery, plugs and plug boots new, new fuse for the fuel pump in the fuse block under the hood, everything seems to work but car won't start, crank sensor fine timing chain fine etc... The problem was a security issue. Security light on dash was blinking when trying to start the car but car won't start. The fix for me was Attempt to start the car by turning the key to the Start/Run Position.
Observe that the vehicle fails to start and that the security light is blinking.
Release key to the 'ON/Accessory' Position. (DO NOT turn key to the 'off' position.)
Allow the vehicle to sit with the key in the 'ON/Accessory' Position for no less than 12 minutes.
Turn key to off position and allow the vehicle to remain in the 'OFF' position for no less than 30 seconds. Then try to start the car. I was surprised this worked for me. 2002 pontiac grand am 2.2L. Hope this helps for you folks.

on Apr 07, 2012 | 2002 Pontiac Grand Am

1 Answer

Caliber will start for a second then die. when i try to start again it will not crank. i have all lights and power in the car seems normal. ill let the car sit for a few hours and it starts fine.


Well if the vehicle starts even for a few seconds .That means you are getting fuel and electrictal supply to give you a spark through the coils wires and disturbuter at least start up .
Then you say you let it sit a few hr's and it starts again
Why did you have to put a new battery in it If it starts fine .
You have a problem with your fuel system not delivering enough fuel .
You can pretty much rule out the electrical system the battery turns the starting motor .
The vehicle it 08 not really old enough for a fuel pump to go but fuel filters clog and that will damage the pump aswell and cause a condution similiar to what you have described and while your at it take out the air filter that will help to .
Give this a try follow the fuel lines from the pump to the engine you will see a fuel filter change it .The vehicle will likely run again
For 10 to 20 dollars out of pocket

Jun 05, 2016 | 2008 Dodge Caliber

1 Answer

Weird running condition on a 1987 Dodge D150 with a 5.2(318) automatic, rear wheel drive What and where do I go next to fix this thing? Backstory: Vehicle was running fine, no issues, no problems


Not the timing. You have a chain in it. Some older vehicles react to a bad temp sensor. Puts to much gas to the engine because it thinks it's -40 degrees outside. Lots of black smoke when running. Hard to start because of to much fuel. If it starts up, you don't need the pick up coil. I would change the temp sensor and the plugs. Plugs are gas fouled.

Feb 01, 2015 | Dodge Cars & Trucks

2 Answers

My vehicle does not start well in the cold..


THERE ARE 2 TEMP SENSORS ONE IS FOR THE LIGHT OR GAUGE AND THE OTHER IS FOR THE ECM. IF THE ONE FOR THE ECM IS FAULTY IT CAN CAUSE HARD COLD STARTS

Dec 23, 2014 | 1998 Chevrolet Suburban

1 Answer

98 VW Died on Hot Day (30 degrees Celsius, 86 Fahrenheit)


  1. Check the ignition switch condition and operation. The electrical contacts in the run position may be worn or damaged. Try restarting the engine with all electrical accessories in the off position. Sometimes turning the key on an off will help in emergency situations, however once the switch has shown signs of failure, it should be replaced as soon as possible.
  2. Check for loose, corroded, damaged or shorted wires for the ignition system and repair or replace.
  3. Check for manifold vacuum leaks or vacuum hose leakage and repair or replace parts as necessary.
  4. Measure the fuel pump delivery volume and pressure. Low fuel pump pressure can also be noticed as a lack of power when accelerating. Make sure the fuel pump lines are not restricted. The fuel pump output is not adjustable and requires fuel pump replacement to repair.
  5. Check the engine fuel and ignition management system. Inspect the sensor wiring and electrical connectors. A dirty, loose or damaged sensor or control module wire can simulate a failed component.
  6. Check the exhaust system for internal restrictions.

Jul 12, 2010 | 1998 Volkswagen Cabrio

1 Answer

Car turns over fine but wont start


I had a similar problem on my car. It turns out that somewhere in my electrical lines the power to my fuel pump corroded. I had to jump power from another key-on fuse to power my fuel pump, because it would have been a real headache to find the problem wire. Have you tried a test light to see if you really don't have power to your fuel pump? Have you even replaced the fuel pump? Your pump might be froze up.If thats the case you will need a new one. I hope this helps. 

Apr 14, 2009 | 1999 Jaguar XK8

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