Question about 1999 Ford Ranger SuperCab

1 Answer

1999 ranger wont start

Turns over. no fuel. no spark. changed crankshaft sensor. changed camshaft sensor. changed coil. changed pcm and fuel relays. checked all fuses. checked fuel pump shut off relay.

Posted by on

Ad

1 Answer

If that was my vehicle I would not have changed one part

I would have gotten out my wiring diagrams & walked thru a
logical sequence of testing what I had & didn't have, as far
as crank sensor output,fuel pressure,injector pulse,etc

Seeing a how pcm's seldom fail ,your just throwing parts at it
& not testing a thing

You need the wiring diagrams to see & learn how the various
systems work

You can actually trigger injectors,coils,relays,etc if you can
use diagrams, test light,meter & jumper wires properly,otherwise
you need professional help

Posted on Jan 08, 2013

Ad

6 Suggested Answers

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

SOURCE: i need a 2002 ford ranger fuse box diagram and afuel pump relay switch diagram

Hi

go to www.motorcraftservice.com then click on the owner guide and put in your truck information
then choose the 1st owner manual printing and should be between page # 184 to 200.

Good luck and I hope this will awnser your question.

Posted on Nov 08, 2008

  • 393 Answers

SOURCE: 1999 F 250 crank but wont start

look on injector pump make sure there are no loose wires

Posted on Dec 09, 2008

  • 532 Answers

SOURCE: 1997 ford f-150...no power to coil packs or fuel pump

hows the fuel pump?i just changed mine in a 2000 f150 with 130,000 miles

Posted on Apr 23, 2009

  • 5522 Answers

SOURCE: 1991 ford ranger 3.0 eec relay fuse keeps blowing fuel good no sp

I understand that there is a relay box under the hood with 3 relays. Which is which I don't know. However if you are blowing the fuse TO the ecc relay, then the relay must be bad. This relay controls the spark.

Posted on Jul 25, 2009

czaa
  • 4525 Answers

SOURCE: 1999 Ford Windstar-Will Turn over but won't start?

fuel pressure regulator could hav failed-located by engine or the ignition module may not be workin-by dist area try not to be a parts replacer-buy a repair book

Posted on Jan 09, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

97 oldsmobile achieva wont fire changed coil pack spark plugs cam sensor still wont start


Make sure battery has a full charge and battery connections all good.
If it cranks good but won't start, have a helper crank it while you visually check for spark at the spark plugs. If spark everywhere, use a gage and check proper fuel pressure and fuel injector pulse.
If you having a problem with more than one system, I want to check for rpm signal, that usually comes from the crank sensor. Not sure why you replaced cam sensor? I always want to check sensor wiring circuits before replacing anything. Don't replace anything unless your testing points in that direction.

Nov 04, 2016 | Oldsmobile Cars & Trucks

1 Answer

No Spark


The relay for the fuel pump is working but have you checked that the pump is actually pressurising the system . Next you have power at the coil but is it getting to the spark plugs from the distributor.

Feb 15, 2014 | 2003 Chrysler PT Cruiser

1 Answer

New fuel pump and still wont start


do you hear fuel pump operation if yes replace fuel filter.if you dont hear fuel pump running could have open short in fuel pump harness or could have faulty fuel pump relay faulty automatic shut down relay,fuse or PCM.if fuel system okay check for spark at spark plugs no spark could have faulty ignition coil,camshaft sensor or crankshaft position sensor.

Aug 15, 2013 | 2000 Chrysler 300M

1 Answer

Hard to start at times hot or cold


engine wont start cold or hot could be fuel problem.check for fuel or spark.try doing little troubleshooting make sure sparkplugs and wires good condition.fuel filter been changed.engine need fuel and spark ignition to run.turn ignition on listen for fuel pump operation in fuel tank if no check fuel pump fuse and relay.if fuse relay okay.problem could be the fuel pump but first use code scanner look for PCM, CRANKSHAFT POSITION SENSOR,CAMSHAFT SENSOR AND DISTRIBUTOR IGNITION FAULT CODE.MAKE SURE YOU HAVE FUEL INTANK I SEEN THAT HAPPEN BEFORE.

Dec 27, 2012 | 2002 Lexus RX 300

1 Answer

1991 Cutlass ceirra 3300 ,runs fine for short time. starts running rough,then dies/will not start again.changed fuel filter, then tested fuel pump.fuel pressure is good.what next ?


Check for spark when it won't start. If you have spark, might be your fuel pump relay, maybe the map sensor. If no spark, check another or all plug wires. If ignition isn't working, it could be Crankshaft Position sensor, Camshaft position sensor (or pick-up coil), ignition control module, coils, pcm, or the wiring associated with them. PCM determines spark timing after inputs from crank and can sensors, and sends ground signal to ignition module, cutting primary voltage to coils, initiating spark or high voltage from coil to sparkplug. All these parts have to be working right for ignition. All can be tested too. You'd need a digital volt ohm meter (DVOM) and a repair manual for your car with the test procedures. That Mitchell alldata-diy site has a special on subscriptions, pretty reasonable for a 1 month subscription, and excellent info and troubleshooting flow charts, wiring diagrams, etc.

Dec 26, 2012 | 1990 Oldsmobile Cutlass Ciera

2 Answers

I REPLACED MY FUEL PUMP ON MY 1999 CHEVY SILVERADO EXT CAB P/U TRUCK AND IT CRANKS BUT IT WILL NOT START...ANY SUGGESTIONS?


did you check for fuel pressure at the fuel rail?
listen for the fuel pump when you turn the key on
did you change the wire harness when you changed the pump?

Sep 25, 2011 | Cars & Trucks

1 Answer

Hey i just helped my friend put a motor in is 99 gt, it turns over but no spark from the coils, ive tried eveything i can think of and still nothing


what motor?

Is the PCM power relay activating? If yes, you should hear the fuel pump hum for 5 seconds when the key is turned to ON.

If yes, then check the crankshaft position sensor and camshaft position sensors to be sure they have output to the PCM.

The crankshaft position sensor:
  • sends the powertrain control module a signal indicating crankshaft position.
  • is essential for calculating spark timing.
Crankshaft Position Sensor (Integrated Ignition Systems) The crankshaft position (CKP) sensor is a magnetic transducer mounted on the engine block adjacent to a pulse wheel located on the crankshaft. By monitoring the crankshaft mounted pulse wheel, the CKP is the primary sensor for ignition information to the powertrain control module (PCM). The trigger wheel has a total of 35 teeth spaced 10 degrees apart with one empty space for a missing tooth. The 6.8L ten cylinder pulse wheel has 39 teeth spaced 9 degrees apart and one 9 degree empty space for a missing tooth. By monitoring the trigger wheel, the CKP indicates crankshaft position and speed information to the PCM. By monitoring the missing tooth, the CKP is also able to identify piston travel in order to synchronize the ignition system and provide a way of tracking the angular position of the crankshaft relative to fixed reference (Figure 23) .


Camshaft Position Sensor The camshaft position (CMP) sensor detects the position of the camshaft. The CMP sensor identifies when piston No. 1 is on its compression stroke. A signal is then sent to the powertrain control module (PCM) and used for synchronizing the firing of sequential fuel injectors. The Coil On Plug (COP) Ignition applications also use the CMP signal to select the proper ignition coil to fire. The input circuit to the PCM is referred to as the CMP input or circuit.
There are two types of CMP sensors: the three pin connector Hall-effect type sensor (Figure 20) and the two pin connector variable reluctance sensor (Figure 21).



A4 CHECK VREF VOLTAGE TO THROTTLE POSITION (TP) SENSOR
  • Disconnect TP sensor.
  • Key on, engine off.
  • Measure voltage between VREF and SIG RTN circuit at the TP sensor harness connector. Refer to the schematic in Pinpoint Test DH .
Is voltage between 4.0 and 6.0 volts? -------- A17 CHECK PCM DRIVER TO COILS
  • Connect incandescent test lamp between B+ and each coil driver circuit at the harness connector.
  • Crank engine.
Does lamp blink consistently and brightly (one blink per engine revolution)?

Jul 24, 2011 | 1999 Ford Mustang Cobra

2 Answers

99 chevy blazer cranks but wont start


CHECK BATTERY VOLTAGE FIRST IT SHOULD BE 12.5 VOLTS.IF NOT REPLACE BATTERY HAVE ALTERNATOR CHECKED.IF BATTERY GOOD.HAVE VECHICLE SCAN FOR PCM PROBLEMS - CRANKSHAFT SENSOR PROBLEMS OR CAMSHAFT SENSOR PROBLEMS.IF ALL IS GOOD GET A SPARK TESTER AND FUEL PUMP PRESSURE GAUGE TESTER.IF GETTING NO SPARK PROBLEM COULD BE LOOSE BAT.POWER SUPPLY WIRES AT IGNITION COIL MODULE OR IGNITION MODULE FAULTY.IF FUEL PUMP NOT RUNNING CHECK FUSE ABD RELAY IF BOTH IS GOOD FUEL PUMP FAULTY.

Apr 02, 2010 | 1999 Chevrolet Blazer

2 Answers

I have fuel pressure but the engine wont start unless i spray starting fluid into the intake. the injectors arent working? could it be the pcm is bad?


Not likely. I believe the injectors have 12 volts going to them all the time. The PCM then grounds them so they operate when the crankshaft or camshaft sensor tell the PCM when the cylinder is on compression stroke.

I would check for an injector fuse first (see owner manual), and then check to see if you have a bad crank or camshaft sensor.

The PCM very rarely fails.

Section 03-14: Engine Controls, Electronic 1994 All Aerostar, Ranger, and Explorer Vehicles Workshop Manual
DESCRIPTION AND OPERATION Powertrain Control Module (PCM) The center of the EEC-IV system is a microprocessor called the powertrain control module . It receives data from various sensors:
  • Throttle position sensor (TP sensor) (9B989)
  • Mass airflow sensor (MAF sensor) (12B579)
  • Intake air temperature sensor (IAT sensor) (12A697)
  • Engine coolant temperature sensor (ECT sensor) (12A648)
  • Heated oxygen sensor (HO2S) (9F472)
  • Camshaft Position (CMP) Sensor
  • Crankshaft position sensor (CKP sensor) (6C351)
  • Power Steering Pressure (PSP) Switch
The powertrain control module contains specific calibrations for optimizing emissions controls, fuel economy, and driveability. Based on information received and programmed into its memory, the processor sends signals to control various actuators:
  • Fuel injector nozzle tip (9E527)
  • Ignition coil (12029)(s)
  • Idle air control valve (IAC valve) (9F715)
  • Ignition control module (ICM) (12A297)
  • EGR vacuum regulator control (9J459)
  • EGR external pressure valve (9F483)

Aug 27, 2009 | 1987 Ford Aerostar

1 Answer

Engine won't start


Sounds like an AUTOMATIC SHUTDOWN (ASD) RELAY problem. Fairly common on the Caravan.
Heres a brief overview of the ASD.
The Powertrain Control Module (PCM) operates the Auto Shutdown (ASD) relay by switching the ground path on and off.
The ASD relay supplies battery voltage to the fuel injectors, electronic ignition coil and the heating elements in the oxygen sensors.
The PCM controls the relay by switching the ground path for the solenoid side of the relay on and off. The PCM turns the ground path off when the ignition switch is in the Off position unless the 02 Heater Monitor test is being run. Refer to On-Board Diagnostics. When the ignition switch is in the On or Crank position, the PCM monitors the crankshaft position sensor and camshaft position sensor signals to determine engine speed and ignition timing (coil dwell). If the PCM does not receive the crankshaft position sensor and camshaft position sensor signals when the ignition switch is in the Run position, it will de-energize the ASD relay.
The ASD relay is located in the Power Distribution Center (PDC). The PDC is located on the driver's side inner fender well Power Distribution Center . A label on the underside of the PDC cover identifies the relays and fuses in the PDC
Check for good ground.
Good luck...i hope this helps, please rate me a fixya.

Jun 25, 2009 | 1994 Dodge Caravan

Not finding what you are looking for?
1999 Ford Ranger SuperCab Logo

348 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

76164 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

fordexpert

Level 3 Expert

5522 Answers

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

Answer questions

Manuals & User Guides

Loading...