Question about Chevrolet Lumina

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1995 van stumbles it has a new fuel pump, fuel filter, fuel injectors fuel pressure valve,idle air valve, pick up coil, ignition module, rotor, converter an muffler, an new computer, i have not put a new ignition coil in yet, or ran a compression check.

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Well i am sorry to tell you that your problem from the beginning was a bad coil these cars love burning coils i tell you, i replaced dozens of coils check for the cylinder thats not working then visually loock for spark at the coil if there is at one end but not at the other replace the coil, good luck

Posted on Dec 11, 2009

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1 Answer

What is next on trouble shooting fuel injectors?


what engine?

Do you have power to the injectors? if not check the ECM1 fuse. If blown check the wiring harness around the throttle body for pinched wires to the injectors. Really common on the early throttle body engines.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Aug 19, 2015 | 1989 Chevrolet C1500

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I have a 2000 jetta is a 2.0 when I am driving my car stops it shuts off frequently pls help me to know what's wrong with it thanks


could have clogged fuel filter or fuel pump failing. could have faulty mass air flow sensor. could have bad fuel injector bad ignition coil or bad plug or wires.idle air control valve failing could have contaminated fuel full of water. have vechicle code scan first before buying new parts.

May 20, 2013 | Cars & Trucks

1 Answer

I have a timing problem. Low idle speed that is intermitten and causes a stumble at starts. This problem also occurres during normal running RPM's. Missing electronic signal but intermitten?


Could be bad sensor whether crank sensor, sam sensor, idle air control sensor, bad ignition module, bad coil or even timing belt. if you have a service engine soon light/creck engine light it's more than likely a sensor. If no light, probably timing belt/fuel filter plugged/ or weak fuel pump.

Jan 17, 2013 | 1995 Toyota Camry

1 Answer

My 95 gmc will not atart i changed the fuel tank


If you do have fuel pressure, but there is no fuel getting into the cylinders to run the engine, then the engine does not have an injector signal or pulse to open the fuel injectors.

The ignition module and the pick-up coil/stator located inside of the distributor is what generates the signal that the ECM (Engine Control Module) uses to time and fire the fuel injectors, as well as the signal to run the fuel pump and the dwell signal timing to fire the ignition coil. A faulty ignition module can cause any one of these systems to malfunction.

That does sound like a malfunction with the ignition module inside of the distributor, and you can remove the ignition module and have it tested for free at most auto part stores. If the ignition module does test out alright then the problem could still be in the pick-up coil/stator, (it can be tested using an ohm meter by dis-connecting the wire connector from the pick-up coil/stator and the ohm reading between the two wires from the pick-up coil/stator should be between 500 and 1500 ohm's, and both of the wires from the pick-up coil/stator should show an open loop or an infinite reading between each wire and ground) and if the pick-up coil/stator is found to be faulty then replace the entire distributor, or the distributor will have to be dis-assembled to install a new pick-up coil/stator.

If you do purchase a new ignition module be sure that it does come with a silicone grease or a die-electric compound because it is a heat sink and the ignition module will burn up without it.

To install the new ignition module first clean out the mounting surface inside of the distributor. Then completely coat the metal contact surface under the ignition module with a thick coat the silicone grease or die-electric compound and do not leave any of the metal contact surface of the ignition module un-coated with the silicone grease or die-electric compound, and be very careful not to over-tighten the ignition module or it will be damaged.

Jun 24, 2010 | 1997 GMC Sierra K2500

1 Answer

I have po300 and po506 on my canyon code cleared and resets after a while


From http://www.obd-codes.com/trouble_codes/
The P0300 is a misfire and P0506 indicates low RPM at idle.

A misfire can be caused by poor ignition (spark plug, plug wire, coil, ignition module/engine control module).
OR
Poor air/fuel (air filter, fuel injector, fuel pressure, fuel filter, fuel pump, bad gas, or engine control module).

Check your maintenance requirements and see if any of these items are due for replacement first.

Jan 06, 2010 | 2005 GMC Canyon

6 Answers

90 chevy 350 with TBI starts but wont stay running changed fuel filter and fuel regulator dont know what next


I have a 90 chevy k1500 350 tbi with same problem! I have traced problem to... after turning on key fuel pump kicks on when u crank it over injectors shoot gas and truck starts! After few seconds injectors stop spraying and truck dies! This can happen many times over and over! Eventually sometimes truck stays running and all is great! I changed ignition module, oil pressure sending unit (which i was told controls gas after vehicle is running) fuel filter, computer, fuel pump relay, I am at a loss now! Hope this helps and hope someone can help me!

Aug 10, 2009 | Chevrolet C1500 Cars & Trucks

2 Answers

1999 Ford Taurus mechanical problem


Hello,
your problem appears to be the idle control motor located on the air intake manifold it is a small motor that goes bad quite often. Other items that can cause this is a bad /clogged air filter or a tune up (spark plugs and wires), or clogged fuel injectors. to clean the injectors you can buy a container of fuel system cleaner and pour it into the gas tank and as you drive it cleans the system.

Once the fuel system is cleaned via a tankful of cleaner & gas then the idle controller motor would be next on the list to be replaced.

Good Luck !
Rich Lilja

Dec 03, 2008 | 1999 Ford Taurus

2 Answers

94 Aerostar won't start. No fire


1 Inspect Battery Damaged or faulty battery and/or connections. here is a list of things u can check hope this helps Shaun 2 Inspect Coil - Ignition Damaged or faulty ignition coil or ignition coil circuit. grey_line.gif 3 Inspect Fuel Filter Clogged or dirty fuel filter grey_line.gif 4 Inspect Fuel Injector Pressure Regulator Faulty fuel injector pressure regulator or circuit. grey_line.gif 5 Inspect Fuel Pump Improperly functioning fuel pump or circuits. grey_line.gif 6 Inspect Wireset Damaged, worn, or deteriorating spark plug or coil wire(s). grey_line.gif 7 Inspect Control Module-Ignition Faulty ignition control module or circuit. grey_line.gif 8 Inspect Solenoid Switch Damaged or faulty solenoid switch or solenoid switch circuit. grey_line.gif 9 Inspect Starter Damaged, worn, defective, or faulty starter or starter related circuit. grey_line.gif 10 Inspect Neutral Safety Switch Damaged or faulty neutral safety swittch or circuit. grey_line.gif 11 Inspect Fuse Corroded, burned, or shorted fuse may be interupting power source. grey_line.gif 12 Inspect Fusible Link Corroded, burned, or shorted fusible link may be interupting power source. grey_line.gif 13 Inspect Battery Cable Corroded, broken or poorly connected battery cable. grey_line.gif 14 Inspect Spark Plug Wire Loom - Performance Improperly adjusted or worn/malfunctioning carburetor. grey_line.gif 15 Inspect Distributor Cap Loose or cracked distributor cap grey_line.gif 16 Inspect Distributor Cap And Rotor Kit Loose, cracked, or worn distributor cap and ignition rotor. grey_line.gif 17 Inspect Fuel System Pressure Incorrect fuel pressure being delivered to carburetor or fuel injection system. grey_line.gif 18 Inspect Fuel Injector Plugged, dirty or poorly connected fuel injector. grey_line.gif 19 Inspect Ignition Switch Worn, damaged or faulty ignition switch or circuit. grey_line.gif 20 Inspect Spark Plug Fouled, damaged or broken spark plug(s). grey_line.gif 21 Inspect Belt Incorrectly routed, adjusted(tensioned), missing or worn drive belt(s). grey_line.gif 22 Inspect Timing Belt Slipped or broken timing belt. grey_line.gif 23 Inspect Timing Set Slipped timing chain or worn timing gear(s). grey_line.gif 24 Inspect Fuel Tank Contaminated fuel from rusted or deteriorated fuel tank. grey_line.gif 25 Inspect Ignition Timing Incorrectly adjusted engine timing. grey_line.gif

Nov 23, 2008 | 1994 Ford Aerostar Extended

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