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I have a edelbrock LS 1 timing box on a LS carbureted setup. On start up it popos back through carb. Checked all wiring and sensors ect. All is correct,it is always trying to find TDC but cant.

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  • Cars & Trucks Master
  • 807 Answers

You may have #1 spark plug wire crossed at the distributor

Posted on Aug 11, 2017


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Posted on Jan 02, 2017

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SOURCE: none start

sensor is at the lower front end of the gearbox. acsessable from underneath

Posted on Jul 16, 2008

  • 28 Answers

SOURCE: ford 351W

I agree, jumped timing. Check to make sure the dist is tight. Than check for tdc on the #1 cylinder. When the #1 cyl is TDC the rotor should be pointing to that wire on the cap. Take the cap off while checking. Also is easier to turn motor by hand without plugs in motor.

Posted on Jul 29, 2008

  • 77947 Answers

SOURCE: need how to find TDC on 4.3 v-6

Remove # 1 plug and stick your finger in the hole, roll the engine over by hand, when you start to feel pressure in the cylinder you are near TDC, just check the crank pulley marks to zero it to TDC mark on pulley.

Posted on Oct 21, 2008

  • 1990 Answers

SOURCE: TDC in Haynes Manual- Isuzu Rodeo TF 1991

No. 4 to Top Dead Center is Correct.

Posted on Jan 03, 2009

  • 11896 Answers

SOURCE: i have a 2001 honda civic took it to autozone and

TDC top dead center sensor. Tells when the #1 piston is at top dead center position.
P1361 Intermittent Interruption In TDC 1 Sensor Circuit

Posted on Apr 03, 2009

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1 Answer

1986 dodge with a 2001 360 dodge magnum motor 600cfm edelbrock carb, air gap edelbrock intake. new plugs (e3s) new wires new coil new ballast.. is all in time.. wont start help

Are you getting spark? You've put a 2001 engine into a 1986 body. The 2001 engine ran with an engine control module (ECM), the 1986 doesn't have that. The 1986 probably has an electronic ignition module that works with the 1986 coil and 1986 reluctor/distributor. You may want to compare the two distributors and the two coils.

Sep 12, 2016 | 1986 Dodge D150

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Hi I just want to how much easier is it to tune an edelbrock carb then a quadrajet carb

Edelbrock cars are square bore and Quadrajets are spreadbore make sure you have either an adaptor plate if running stock manifold or you'll have vacuum leaks, as far as tuning Edelbrocks are EZ. 2 air/fuels screws that only effect idle, turn in till runs rough then back out 1/4 to 1/2 turn on both, that will set it for economy, for performance engines, turn out or counter clockwise till runs rough then turn back in clockwise 1/2 to full turn, set idle ***** and your good to go, the two vacuum ports in front are distributor advance, the right side closest to manifold is full time vacuum hook there for performance or left side for economy.. if you buy a new edelbrock carb it will run great right out of the box, also has a set/up DVD, for novice Mechanics, ez to change metering rods too, hope this helps, and in my opinion Quadrapuke carbs are junk.

Apr 09, 2016 | Cars & Trucks

1 Answer

Ect sensor fault

Check catalytic converter. Maybe clogged or chaned

Feb 14, 2014 | 1999 Lexus LS 400

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I have a 1985 gmc Sierra with an 305 with an edelbrock 1401 500cfm carb how should I adjust the carb to run stronger with the 2 screws on the front of the carb

Start by checking the existing settings of your air adjusting screws (the two in front). you do that by turning the screws one at a time in (clock wise) at one half turn at a time until they stop. should be appx. 1 1/2 turns. Be sure to jot down how many turns it took so you can put them back if need be. Now set both at 1 1/2 turns out (counter clock wise) NOTE. Do all this with engine off...... Now start engine and turn screws out slowly one at a time about 1/2 turn then in until you hear the engines RPMs start to drop then turn out again 1/4 turn. Now your air/fuel mixture should be as close as your going to get it without a dino machine

Jan 03, 2013 | Cars & Trucks

1 Answer

Suburban 1993 2500 -454 / It runs rough on start up and then leans out and then the motor idles faster. It ran fine up until yesterday when my wife could not start it. Could it be a O2 sensor or fuel...

By "throttle body carb" I am assuming you to mean that the engine is equipped with Throttle Body Injection (TBI). The O2 sensors on that engine do not even start working for about 5 minutes. They are not going to cause a problem on start-up. A fuel filter will most likely not cause a problem on start-up or idle either. A fuel filter is most likely to cause problems on acceleration or when pulling a hill. A more likely cause would be a n Engine Coolant Temperature (ECT) sensor. If one of these is reading too low, it will cause the engine to flood and smoke black out the exhaust - especially on start-up. (LIke a choke sticking on an old carbureted engine.) If your truck is equipped with a gauge, there may be 2 Coolant sensors. One for the gauge and one for the computer. If you replace it, make sure you are replacing the sensor for the computer.

Feb 27, 2011 | 1991 Chevrolet K2500

2 Answers

Throwing code p0300 running rough random multiple missfire changed plugs, started car after sitting for a while ran good untill automatic choke shut off

there are a few possibilities that could cause this one is a dirty mass airflow sensor or an oxygen sensor giving false information to the pcm. i have a few things to try if you have an ls option package or higher you have a 3800 series 2 engine the mass air flow sensor is on the top of the throttle body. to clean this sensor, remove sensor by taking two screws off top unhook wire connector and lift up. images?q=tbn:and9gcqvquq-ytppsamlgyuwiqep8tegsa4ezpza1bsmdhtleu7ktnsmigthis is sensor upside down clean the little wire in center with carb cleaner just spry through the hole shake it a few times and reinstall. start engine see how it runs. if you have a 3400 g_mcmy.jpgremove silver sensor from air inlet duct running from throttle body to air filter box (check for signs of mice in air box due to sitting for a period of time prior to problem) loosen two clamps on sensor,unhook wire connector and wiggle out sensor spray wires clean with carb clean shake a couple of times and reinstall (do not touch wires with fingers) start car and test. the other possibility is 02 sensor the easiest way to figure this out is to unhook the precatalyst sensor if you look over the back of the engine( on either engine) were the exhaust comes off of engine there is a sensor there un hook it start car and run it see if condition improves.

Dec 20, 2010 | 2004 Chevrolet Impala

1 Answer

My radiator fan is not working on my 2006 Dodge Charger

Hi, If you have truble code check/service engine soon light on,then go to your local Autozone part store for a free scan. If not,i'm going to start with haveing you check the cooling fan relay,this can be found in the power distribution box,this can be found in the engine compartment.I would change places with another relay with the same number on it. If this takes care of it,buy a new relay and it was an easy fix. If not here's tests you will have to do as long as you have a digital volt meter.

Operation printpage_icon.gif

The Engine Coolant Temperature (ECT) sensor is used to sense engine coolant temperature. The sensor protrudes into an engine water jacket.
The ECT sensor is a two-wire Negative Thermal Coefficient (NTC) sensor. Meaning, as engine coolant temperature increases, resistance (voltage) in the sensor decreases. As temperature decreases, resistance (voltage) in the sensor increases.
The PCM compares the ECT, Intake Air Temperature (IAT), and Ambient Air Temperature (AAT) under cold start conditions. Following a start to run delay time, the sensor values are compared. If the one sensor value is not within a specified range of the other two sensors, the value is determined to be irrational

2.7L, 3.5L & 5.7L Engines

  1. Turn the ignition off.
  2. Disconnect the Engine Coolant Temperature Sensor (ECT) harness connector.
  3. Turn the ignition on.
  4. With a scan tool, read the ECT sensor voltage.
  5. The sensor voltage should be approximately 5.0 volts (plus or minus .1 volt) with the connector disconnected.
  6. Turn the ignition off.
  7. Connect a jumper wire between the (K2) Engine Coolant Temperature Sensor (ECT) signal circuit and the (K900) sensor ground circuit in the ECT harness connector.
  8. Turn the ignition on.
  9. With a scan tool, read the voltage.
  10. The sensor voltage should be approximately 0.0 volts (plus or minus .1 volt) with the jumper wire in place.
  11. If voltage is present as stated suspect faulty ECT sensor.

I hope this helps,Thank You for using fixya, iluv2fish..... Ray.......

Jun 30, 2010 | 2006 Dodge Charger

5 Answers

Ford 351W

I agree, jumped timing. Check to make sure the dist is tight. Than check for tdc on the #1 cylinder. When the #1 cyl is TDC the rotor should be pointing to that wire on the cap. Take the cap off while checking. Also is easier to turn motor by hand without plugs in motor.

Jul 29, 2008 | 1966 Ford Mustang

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