Question about 1989 Cadillac Sedan DeVille

1 Answer

My car has been sitting for 4 yrs. will not start i am getting fuel presurre at the releif valve. but no injector pulse. i had a noid light on it and didnt light up

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Cadillac Master
  • 6,927 Answers

Clean out in the distributor,it maybe the problem,the injector pulse comes from the distributor.

Posted on May 12, 2010

  • Ronny Bennett Sr.
    Ronny Bennett Sr. May 12, 2010

    If this does not help,replace the pick up coil in the distributor.

×

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

2000 caravan cranks but wont start. Fuel pump has been replaced


Do you have spark at the plugs? Have you checked actual fuel pressure KOEO? Have you used a noid light to check for injector pulse?

Oct 03, 2016 | Cars & Trucks

1 Answer

2011 swift 1.5 no injector pulse no spark


blown fuse. ; is first, as per always.
2nd is scan it, did you scan it yet? that is always 2nd.
all efi engines, all ECU , all cut injectors for (noid lamp test dead?)
you said pulse,does that mean fuel pulse or electronic pulse to injector coil..... ? all injectors dead. or just 1. same for spark.
toss coin land, noid dead. all noids
loss of. NOID signals.!
1; spark
2: lose of CMP or CKP signals (cam or crank senders)
3: ecu sees wide open throttle it cuts fuel 100%
4: ecu bad, is CEL lamp dead key on? scan it.

Apr 01, 2015 | Suzuki Swift Cars & Trucks

1 Answer

How do you know if an injector is bad and how can you test it


There is a tester called a Noide light. This plugs into each injector wiring socket to see if the injector is getting a pulse. You can accomplish this same thing with a Voltmeter. Sometimes the auto parts store have loaners in Noide light kits.

But this will only show you if power is going to the injector. You need to do an Ohmmeter for continuity on each injector. This will give you a fair idea if they are passing fuel.

You will be able to tell if injectors are getting their pulse using the noide light.

Mar 03, 2014 | Mercury Tracer Cars & Trucks

1 Answer

Starts cold but not when warm


Are you certain that the pump is on when the no start occurs? Do you hear it turn on with key on, not start, when the engine won't fire? It should turn on for 2 seconds to pressurize the line to the injectors. If you could, check fuel pressure when the no start occurs.

If it is the injectors, buy a cheap "noid light" to check the injector circuit. Buy the one that fits your injector harness connectors. You pull off a connector to one injector and put the noid light in the connector. When cranking the engine over the noid light should be blinking-that is the pulse that fires the injectors. The injectors have battery voltage to them any time the key is on. When the ecm momentarily grounds the injector circuit (internally in the ecm), the injector is pulsed. If the noid light does not blink or even light up when cranking, the injector circuit has a problem in the power side or the ground side.

Feb 09, 2014 | 1991 Chevrolet C/K 2500

1 Answer

Still need an answer to why my 98 explorer wont start ,started just fine 3 minutes prior spins but no start get spark compression fuel but no start if i wait a day or two it almost starts but dies qi


Check if the injectors are pulsing when cranking the engine over. Listen for the tick, or feel for the pulse with your fingertips, or buy a cheap "noid light"-an injector circuit tester- one that fits your injector harness connectors-plug it into an injector connector and crank the car. If circuit is working the noid light will be flashing.
Some anti-theft systems immobilize the injector circuit when they are activated. So you have spark, compression, and fuel to the engine, check the injector circuit.

Dec 01, 2012 | Cars & Trucks

1 Answer

Hard starting of 95 accord lx


it could be your IAC valve

Sep 16, 2009 | 1993 Honda Accord

1 Answer

Will not start, ether in the injectors turns it over


CHECK FUEL PRESSURE AND INJECTOR PULSE, IF YOU HAVE A NOID LIGHT. THERE IS A FUEL PRESS TEST PORT ON THE FUEL RAIL. KEY ON ENG OFF PRESS 35-45 PSI IF ITS A V 8 ENG 50-60 IF ITS A STRAIGHT 6. TO CHECK INJECTOR PULSE DISCONNECT THE EASIEST INJECTOR AND PUT THE NOID LIGHT IN THE CONNECTOR AND TURN THE ENG. OVER IF IT FLASHES YOU HAVE INJ PULSE. START THERE AND SEE WHAT YOU GET.

Aug 04, 2009 | 1992 Ford F150 SuperCab

1 Answer

Have 99 sierra has spark and fuel to intake but wont start sometimes sputters but no go please help


You need to find out if you have enough fuel pressure, and if you have injector pulse. A noid light is a simple kind of test light that you can get at a parts house to test injector pulse. Unplug an injector and plug the noid light into the harness. Have someone crank the engine, if it flashes then your injectors are firing. Check all the fuses under the hood. You should have 55 to 60 psi fuel pressure.

May 01, 2009 | 1999 GMC Sierra

1 Answer

94 Altima Running Rough


MAKE SURE WIRES ARE GOOD, to check injector Get a noid light and take that injector plug and plug into noid light it should light up everytime injector would pulse.(IT SHOULD BE A STEADY PULSE) contact if you need more help

Dec 27, 2008 | 1994 Nissan Altima

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

108 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cadillac Experts

yadayada
yadayada

Level 3 Expert

76848 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Cadillac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...