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Will a module test good after it has cooled off

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Yes it can and in most cases it will

Posted on Nov 14, 2009

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My1994 toyota tercel stalls when warm


Could be bad electrical part failing as it gets hot. Coils, ignition modules, crank/cam sensors all can do this. Quite common. Check if you have spark to plugs when it fails. If not, start testing parts. Problem is, they will cool and then test ok so this can be hard to find. Start with ignition module which parts stores often test for free. Run test several times to heat the unit up.

Jul 07, 2015 | 1994 Toyota Tercel

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Drives ford while and at times stops and after 15 or 20 minutes starts again, what is wrong with my car ??


Most likely are coil or ignition module. Test for spark at plugs when failed. Other, could be bad gas cap, fuel pump, other sensor such as crank/cam sensor. Electrical parts can fail as they heat up, and work again as they cool. These can be hard to diagnose because they test good when cool.

Apr 17, 2015 | 2001 Saturn L-Series

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RE worded Hesitation issues on occasions tonight drove 15 miles stopped put in gas. Drove off got about 1000 yards engine just died had to cost to a space tried to start cranks but wont run?


Do basic testing. When in failed mode, check for spark. I suspect ignition module or coil, as these parts fail when hot and when you turn off running engine it gets hotter before it cools. Hard to diagnose because when you remove module to test, by the time you get to a parts store to test it's really cool again. Make them run test three times and tap with a pencil as you test.

Mar 27, 2015 | 1992 GMC Sierra K1500

1 Answer

1987 f 150 6 cyl starts and runs till hot then wont till cooled off


Probably a bad ignition coil or a bad TFI module (the ignition control module). Much testing could be done to find the faulty part, but I believe if you take the TFI module to a parts store, it could be tested.

Dec 26, 2014 | 1987 Ford F 150

1 Answer

91 cutlas ciera 3.3l v6 backfires then stalls but starts back up


SOUNDS LIKE THE IGNITION MODULE OR COIL PACKS HEATING UP

Sep 12, 2012 | 1991 Oldsmobile Cutlass Ciera

1 Answer

Car cuts off after driving it for a while


This sounds like a bad ignition control module that heats up and looses spark, start by removing the module and having it tested at an auto parts store, note; make sure they test it a few times to allow it to heat up , good day.9_2_2012_6_14_15_pm.jpg

Sep 02, 2012 | 1998 Ford Crown Victoria

1 Answer

I have a 91 chevy cavalier it runs until it gets warm then starts to shake and sputter then it stalls wont start again for couple hrs what it wrong with it


This sounds like a bad control module, this is an ignition control module and it sounds like when it heats up it goes bad until it cools down, if you remove it ,there are many auto part stores that will test it for you, but make sure its tested a few times so it heats up good,

Oct 13, 2010 | 1991 Chevrolet Cavalier

1 Answer

When the motor is hot it will not start. after it has cooled (8hours) it will strart and run fine. The ignition module tested OK, the coils tested OK. I?m at a loss on this one.


When the ignition module was tested,they most likely did not run it and then test it,when the ignition module does this,it will check good,until it is heated up,with the run mode setting on the tester,so have them do this when they test it,but,it is most likely the problem,if not,the crankshaft sensor is the next likely problem.If this was helpful,please rate,thank you.

Jul 04, 2010 | 1992 Buick Regal

1 Answer

Test radiator cooling fans


Hello,

they should come on at app. 90 deg. celsius (190 F) .

It is a common problem with the beetle, the cause is a malfunction in the cooling control module.

The module is surveilled by the on board diagnosis system, so you should bring the car to the shop and let them run some tests with the diagnosis computer.

Jun 25, 2010 | 1999 Volkswagen Beetle

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