Question about 2001 Pontiac Bonneville

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Car won't start when it gets really hot outside

My car randomly won't start when it gets really hot outside. I'll try to start it and it won't even turn over but the radio will come on and everything electronic works so I wouldn't think it's the battery.

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You have entered Two separate problems here . First question is does the starter crank which is when you turn the key and the Starter runs to turn the engine. If that does not work start at the Battery and see if it is full of water. Contrary to popular belief maintenance free batteries do loose water and use only distilled to top it off and then test if to see if it actually puts out the required Amps. Then make sure the cables are clean and secure by opening them, cleaning them, and reattaching them. Just because a Cable is bolted to the Chassis does not mean it will allow enough amperage to power your watch. Now assuming you have power to the Starter than the Starter becomes the culprit. If the engine cranks and will not start that becomes a whole long series of checking to make sure the plugs are firing and at the correct time, there is fuel to the injectors and they are firing at the correct time. This is where Crankshaft and Camshaft Sensors get into the mess.

Posted on Feb 07, 2015

Could be the battery if it is over 4 years old
Could be the starter or it's solenoid
Only use the battery to turn the starter ,so
it has to be able to provide 300 amps or more
Don't think the problem is heat related,more of a
voltage drop issues or lack of current.

Posted on Jul 19, 2013

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Posted on Jan 02, 2017

  • 21 Answers

SOURCE: the display does not work on the radio

Odd about the speakers not working only when its hot out but anyways,
There is a bulb in the radio that shines throught the LCD panel to show the display, it could be burnt out, or just not getting connection.
You can rig up a bulb in the radio fairly easy, just go hit up your local Radio Shack, or go on Ebay and search for "GM Radio Bulb" they are about 20 bucks. 
For the rear speakers, i'd check the connection through the trunk to make sure they aren't loose. 

Posted on Apr 20, 2009

tayjoejoe
  • 2182 Answers

SOURCE: My radio is not working

Get a new radio. Or an aftermarket radio with $180 adaptor. Sucks, but the radio ties into the security of the car, which may be effecting your starter. Sorry, these are probably the only options.

Heres a link about security systems shutting down starters on GM cars http://vatspasslockpasskeysecurityhelp.yolasite.com/

Posted on May 20, 2011

tayjoejoe
  • 2182 Answers

SOURCE: My 06 Pontiac G6 won't

Probably the anti theft security system. Does your key say PK3 on the shaft? try a different key.

This link explains the problem, but im sorry i have no solution for you http://vatspasslockpasskeysecurityhelp.yolasite.com/

Posted on May 23, 2011

ZJLimited
  • 17970 Answers

SOURCE: 2002 Pontiac montana won't start

The problem is most likely a bad connection at the battery or the underhood fuse panel behind the battery. Recheck these connections and included the ECT (Engine Coolant Temperature) sensor (wires and harnesses).

Fuel system? Relative to how gasoline engines work, one that has sat during the 8-hour workday is nearly as 'cold' as one which has sat overnight (overnight will dip mebbe 30*F more, but this is practically irrelevant to an engine). The one major variable is volatility of the gasoline, which is affected by atmospheric temp especially when the engine isn't warmed-up. Starting this month (and continuing until fall) the 'blend' of gasoline will change from 'winter' to slower-vaporizing 'summer' in most regions of the country; you may have it now, or from some specific gas station.

If the car's Inlet Air Temperature (IAT) sensor (in the airbox), is faulty and reading too high, then the combination could push your engine 'over the edge' in terms of the PCM trying to set the proper richness for 'cold start.'

Keep us updated.

Posted on Jun 20, 2011

  • 104 Answers

SOURCE: Car won't start. Battery has charge. Replaced

if it does not crank then you might need a starter, if it does crank the you have to check to see if you have fuel pressure

Posted on Jul 01, 2011

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