Question about 1997 Chevrolet Suburban

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1987 chevy suburban engine control module location

Not seeing voltage from EMC pin A1 to fuel relay. is the EMC bad?? Where is it located?

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

emissionwiz
  • 75817 Answers

SOURCE: fuel pump relay for a 1994 Chevy Truck WT1500

The Fuel Pump Relay is located in the Glove Box under a little cover on the upper left side. The Fuel Control Relay is the left relay and The Fuel Pump Relay is the right. To test these relays, swap them and then try to start the vehicle, or blow the horn. If the horn blows then use that relay for the pump and you may at least drive the vehicle where needed! If the vehicle starts, then replace them as a pair.

Posted on Apr 27, 2009

jrw4u
  • 62 Answers

SOURCE: Transmission Control Module

Before condemning the transmission, I would check the shift cable for proper operation. Look at the side of the transmission where the shift cable attaches. Have someone shift the transmission from PARK to FIRST. The engine should not be running. If the operating lever on the transmission moves, then you probably do have an internal transmission problem. 78151957.gif
If the operating lever does not move, you have a broken shift cable or it has popped of it's attachments at the operating lever or gear shift handle.
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A bad Transmission Control Module (TCM) would not keep it from shifting. In the event of a bad TCM, the transmission would go into fail safe mode and you could continue driving the vehicle.

Posted on Apr 28, 2009

  • 532 Answers

SOURCE: where is fuel pump relay on 1989 chevy suburban 1500

passengers side firewall behind plastic cover thats about 12 inches long with a bump in the middle,where the battery cables hook together ,there should be 2 relays there and i think its the one closest to the drivers side

Posted on May 08, 2009

  • 540 Answers

SOURCE: 2003 Chevy SuBurban The windshield wipers will not

It is actually a wiper control module that controls this. I have replaced many of them. It is the cover that is screwed to the wiper gear box. Remove both wiper arms. Remove the plastic cowl cover below the windshield that covers from side to side. Once inside you will see the wiper motor/transmission assy. Disconnect the electrical connector, and remove screws from cover, and replace it.

Posted on Dec 11, 2009

  • 1 Answer

SOURCE: location of fuel pump relay on 1987 chevy blazer

It's the black oval box attached to the firewall with a wire harness coming out of the bottom
under the hood...above/slightly to side of passanger side valve cover...should have grey plastic locking "key" on the face of it

Posted on May 31, 2010

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    1999 Chevy Suburban with no fuel pressure. The following is covered in this video: 1. How to test a fuel pump relay in a power distribution box.


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2009 chevy tahoe fuel pump wont shut off


The fuel pump control module is controlled by the ECM - engine control module , Possibility of DTC'S stored ! You need to take to Chevy Dealer !
The engine control module (ECM) supplies voltage to the fuel pump control module (FPCM) when the ECM detects that the ignition is ON. The voltage from the ECM to the FPCM remains active for 2 seconds, unless the engine is in Crank or Run. While this voltage is being received, the FPCM closes the ground switch of the fuel pump and also supplies a varying voltage to the fuel tank pump module in order to maintain the desired fuel rail pressure.

Apr 22, 2015 | 2009 Chevrolet Tahoe

1 Answer

Where is the fuel pump relay on my 1994 chevy subaran 1500


buy a haynes manual at a partstore--chec fuses 1st as well as wiring-may also be a module issue--on older cars the computer plug may be dirty-disconnect and clean the pins

Sep 19, 2014 | 1994 Chevrolet Suburban

1 Answer

No fire thru coil wire


no,the pump wouldn't do that. Pull the dist cap and crank the engine,make sure the rotor spins,may have sheared the pin one the shaft.

Feb 09, 2014 | 1988 Ford F 150

1 Answer

Where is the cooling fan relay located on a 94 Chevy Beretta 3.1?


It is located at the rear of the engine compartment behind the right strut tower. Thyere are 3 or 4 relays there in a cluster. The one you want has 4 wires: 2- RED 1- LIGHT BLUE and 1- DARK GREEN.

Both of the RED wires are HOT at all times. They come from fusible link [G] located at the starter solenoid (RUST colored).

The LIGHT BLUE wire goes to the cooling fan. This one should be hot whenever the Powertrain Control Module (PCM) turns the relay on. One of the RED wires provides battery positive voltage to the LIGHT BLUE wire when the PCM grounds the relay primary (coil) circuit to operate the relay.

The DARK GREEN wire is the relay control circuit from the PCM. One of the RED wires feeds battery positive voltage to the relay coil and the PCM controls the relay by providing GROUND for the relay coil. The DARK GREEN wire goes to Connector #2, PIN #2 at the PCM.

May 12, 2012 | 1994 Chevrolet Beretta

1 Answer

Got a 1987 chevy suburban and it wont start and it is getting fuel and cranking over


Check for vacuum leaks and for spark. The most common problem Ive seen is the ignition control module. Those are notorious on the older chevys. It is located on the bottom of the distributor.

Dec 30, 2010 | 1987 GMC Suburban

1 Answer

Trying to find the fuel pump FUSE.


There is no fuse specifically dedicated to the fuel pump on this year and model of Suburban. This Suburban is equipped with dual tanks and as such has two relay switches, primary and secondary, both of which are located at the main fuse box in the engine bay, that power up the respective fuel pumps.

The closest fuse (15A) controlling either of these relays also powers up the main control module (located beside and below the main fuse box). So, if one needs to disconnect the fuel pumps from functioning, then the only effective method is to disconnect the fuel pump relays.

May 27, 2009 | 2003 Chevrolet Silverado Ss

1 Answer

Where is the ignition timing located on a 1987 Chevy suburban?


i will assume it has a 305 or a 350,i run my timing at 4 degrees btc and being fuel injected youll have to unhook your distributor bypass it is a single wire located behind distributor taped to harness it has a plug similar to your o2 sensor plug

Mar 25, 2009 | 1987 Chevrolet Suburban

3 Answers

PCM module, ECM module 1996 Chevy Suburban K model


Powertrain Control Module = under right side of dash, near blower motor.
Engine Control Module = same as above
Vehicle Control Module = same as above

All Suburban vehicles are equipped with only one of these choices. Good luck.

Oct 04, 2008 | 1996 Chevrolet Suburban

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