Question about 1995-1997 Chevy Tahoe Ignition Starter Alarm Switch

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95 chevy tahoe 350 runs for 20 min and stalls and has no spark to plugs and 12 volts at coil till cranking then it shows 8 volts . after a hour it will start again would this be the coil?

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Sounds like the ignition module. Should be attached to the coil bracket. You can take it to your local parts store and have it checked.

Posted on Sep 11, 2010

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1992 isuzu pickup,2.6 engine , surges up and down after 10 minutes then shuts off


1992, PICKUP, in USA? what country , ? cars are not same all over earth. sorry.
engine surges, then stalls. correct.>?

nice testing , rare here, real nice !!!!
spark good as it stalls
so if engine is ok, compression, (seems cat is not melted with 20 " HG)
is flooding or starving for fuel,.
one or the other, you can find that out.
if spark timing was ok, then the belt did not slip. on cam)
leaving only fuel issues.
so DO the magic , WOT, cranking trick this trick (logic in ECU)
cuts the injectors dead, cranked, to unflood all engine with EFI.
do that?
check spark tips, for 3 to 4 hours dead.? be next
2.6L (is 4 cylinder.) is cam belt drive, i never fail to check it first
the fail, at 60k miles, all do. all rubber band engines do.,

if all this is ok, not flooding
one can start engine with test fuel, and even keep it running
even with (hint) fuel pump relay pulled.
if that works, the fueling is wrong.
injectors leaking,? ?
if only one spark tip is wet , soaking in fuel, Injector issues.

when it stalled pull all 4 plugs and look at the tips.
(if cam is timed right) be super super first thing, on this 4 banger.

Mar 08, 2017 | 1992 Isuzu Pickup

1 Answer

93 chevy truck runs then when warm it stall and wont start till its cool


Car not starting or turning over indicates towards multiple possibilities. It can be issue with battery or weak battery. But if battery checks out ok, then it can be starter issue or faulty alternator or problem with low fuel pressure or no spark at spark plugs due to dirty spark plugs or faulty ignition coil or injectors getting cracked or dirty and needs to be cleaned.


To confirm the problem, the basic troubleshooting is required.


Click this link below and follow the troubleshooting:------

http://technoanswers.blogspot.in/2012/02/car-starting-issues.html

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This will help.

Thanks.

Feb 07, 2012 | Bulldog Remote Starter & T-Harness Kit for...

1 Answer

Engine stalls while driving


That would be a symptom of a crankshaft postion sensor going bad . Shorting out when heated up . But unfortunately thier are other sensors that can cause the same problem . Plus the ICM - ignition control module could cause that problem as well . OH yea , almost forgot you vehicle has two crankshaft position sensors . You best bet , take it to a qualified repair shop that has the diagnostic tools to trouble shoot the problem .
The electronic ignition (EI) system consists of the following components and wiring circuits:
• The ignition control (IC) module
• The ignition coils
• The powertrain control module (PCM)
• The 24X crankshaft position (CKP) sensor
• The 7X CKP sensor
• The camshaft position (CMP) sensor
The EI wiring circuits listed here use the following service common names. Between the IC module and the PCM:
• Low resolution engine speed signal
• IC timing control
• IC timing signal
• Low reference
Between the 7X CKP sensor and the IC module:
• CKP sensor (1) signal
• Low reference
Between the 24X CKP sensor and the PCM:
• Medium resolution engine speed signal
• 12-volt reference
• Low reference
Between the CMP and the PCM:
• CMP sensor signal
• Low reference
• 12-volt reference
The IC module also receives power and chassis ground through the following circuits:
• Ignition (1) voltage
• Ground

When it stalls check for spark , pull spark plug wires off the same coil an crank the engine . Is thier spark jumping from one coil tower to the other ? Make sure it's a lack of spark problem .

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2 Answers

No spark at plugs on a 1986 chevy pu with 350 is the coil bad or something else


to test whats wrong you need a test light 12 volt. It's an ice pick like tool with a clear handle and a ware with an alligater clip. hook the clip to ground near the ciol then with the key on the ciols small wires will be hot ( lights the light ) unplug the small wire plug at the coil and one wire will be hot the other cold. the one thats cold connect the test light and reconnect to the coil. crank the engine before cranking with the key on it should be lit cranking it should flash off and on quickly. All of this presoposes that the battery is well charged and cranks the engine good. if it just stays on then you need to verify that the distrubutor is turning, ( cap off look it it with it cranking it should turn if not the timing chain whent out. no flash and the distrbutor turns the crank senser 9 DISTUBUTOR PICKUP OR THE INGTION MODULE failed any of the wires can break too. Most auto parts stores can test the module before you buy a new one. module failure is common well motor no start. the pickup is not as common and if your not a regular mechanic then changing the distrubutor is easier. make sure that you put the new one in the same as the old one or it won't run. turn the engine till the rotor points straight to somewhere (front) pull the old on watching it turn as it comes out so you can turn the new one in at the same place put the cap back on and fire it up. The rebuilt distrubutor will have a new pickup and module. The coil can fail but not like a light switch. if the the ciol has power and the other side flases and theres no spark the coil is bad.

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1 Answer

Code 43 . my alt stayes at about 11 12 volts when


CODE 43 IS ELECTRONIC SPARK CONTROL -.KNOCK SENSOR.LOOKS LIKE ALTERNATOR NOT PUTTING OUT ENOUGH VOLTS TO CHARGE BATTERY.YOU NEED 13.5 TO 14.5 VOLTS.CHECK ALTERNATOR FUSE AND ELECTRICAL WIRES.MAKE SURE BELTS NOT SLIPPING.IF ALL IS GOOD.REMOVE ALTERNATOR.LET AUTO ZONE CHECK IT.TO MAKE SURE.TURN OFF RADIO BEFORE MOVING BATTERY CABLES.SO YOU WONT LOSE RADIO CODE.YOUR CAR IS NOT GOING TO RUN RIGHT IF THE ECM DONT RECEIVE 12 VOLTS OR 13 VOLTS.

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3 Answers

Ford 8N will not start when hot


This sounds like a bad fuel pump to me. The only way to be sure is to check the fuel pressure when cold, probably around 45 PSI. Then when it get hot it will drop way down to 10 or 15 PSI. Check the pressure if you can, or change the fuel pump.

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2000 2.0 vw shutt down after running 20 min


Replace the fuel pump relay, it's easy and cheap.

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1 Answer

2000 caravan 3.0 stall after 20 min no spark restarts few hours later


This sounds like a bad (probably cracked) ignition coil.

First, the coil gets hot when operating, and this is normal.

If it is cracked, it gets hot to the point where its resistance gets so much higher that it cannot provide enough voltage for spark.

When it cools back down it starts working fine again.

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