Question about 1984 Chevrolet Chevy

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Distributor is not rotating on a 3.8 chevy motor after changing a fuel pump

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  • Chevrolet Master
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Check to see if the cam shaft is turning (broken belt). IF the fuel pump is mechanical it is possible to put the lever on the wrong side of the cam lobe and it may have jammed the cam.

Posted on Dec 28, 2013

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Posted on Jan 02, 2017

  • 534 Answers

SOURCE: chevy cargo van jerks

Check/ replace your sparkplug and coil high tension leads.

Posted on Jul 11, 2009

  • 2002 Answers

SOURCE: 1987 S-10 CHEVY

Do you hear the fuel pump buzz for a few seconds when you turn on the key? If not you have an electrical problem. If you do, then trace the fuel line from the tank to the first point where it connects to something and loosen the connection. Turn the key on and see if you get fuel. If not then the problem is between there and the tank. If you do then try other end . Keep doing this at every junction and you should find the cause of your problem. Hope this helps.

Posted on Sep 22, 2009

swoop611
  • 488 Answers

SOURCE: No fuel from my injectors, my fuel pump is not engaging.

Fuel pump power comes from a relay which is usually under the hood but not always, it can also be behind one of the kick panels next to the drivers left foot or passengers right foot. Are you getting power to the injectors as injector power usually comes from a different relay or direct from the ignition switch. The injectors are grounded by the control module so they should have power all the time or when the ignition is turned on. Check out the relays and also check the wiring harness connectors both under the hood and through the firewall. Next, check for the various engine signals to the control unit. If a cranking or cam angle signal is missing, the control unit will disable the injectors and fuel pump.. buy or borrow a copy of the workshop manual (try the local library for this) as most have the procedures and test methods to check for issues..

Posted on Dec 07, 2009

jturcotte
  • 7712 Answers

SOURCE: I have a 98 Chevy

Yes, try ether. If still no combustion, consider timing chain/belt.

Posted on Sep 17, 2010

johnjohn2
  • 5763 Answers

SOURCE: 04 chevy avalanche , takes 2 times the rotations

You are on the right track, the problem which is common is the fuelpump, the problem is , theres an internal antiflow valve the goes bad inside the pump, what happens is the fuel runs back into the tank and empties the lines and injector rail, when you go to start the truck it now take time for it to pnump fuel back through the lines to fuel rail and injectors and pressurize, so it take so cranking to get going. a little neat trick to be sure is to turn key on then off three times and then it should fire up, if it does then its the fuelpump, you will need to drop the tank and replace the fuelpump asm, the pump will still operate, we have customers that have had this problem for a couple of years and still havent repaired it due to the cost, they dont mind the long crank time to start, if you are going to repair drive until gas is about empty, this will help alot when its time to drop the tank,heres a picture of the fuelpump asm, hope this is helpful, have a good day.johnjohn2_13.jpg

Posted on Nov 08, 2010

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Changed the fuel pump and also got the timing. Chain changed But still want stay started. Ooh it is a 87 delta 88 oldsmobile


Have you changed the plugs and wires? If the plugs are very old, and the damper it is, the less it will stay running. Routine tuneup and oil changes on chevy motors and aside from a fluke parts breakage or abuse, they will last about forever.if it's tbi, check and clean all grounds, change the fuel filter, the module in distributor cap, (very rarely the distributor goes, *see bad ground) the coolant sensor (either sends too cold, putting too much fuel =running rich, or sends too hot, putting too little fuel = running lean) and also fuel pump (start with module, most of time it's that) used module is cheaper I used to cart spare in glove box and special bit for the screws.
If it's carbureted, check the fuel filter in the inlet at the carb, and also if you already changed the fuel pump, it might be faulty and not be pumping fuel.

Jan 09, 2016 | Oldsmobile Cars & Trucks

2 Answers

98 Chevy 1500 Running down road dies Has fuel. Has spark.


If it has spark to the plugs, normal compression, and fuel, it should start. So assuming it does have normal compression, I would want to know if it will try to start by spraying carb cleaner into the throttle body to substitute the injector spray. One of the three components is missing.
Another thing to check is the distributor cap and rotor to make sure spark is reaching all of the plugs at the right time.

Aug 31, 2014 | 1998 Chevrolet K1500

1 Answer

Distributor not rotating after changing the fuel pump on 3.8 chevy


The 3.8 liter engine has a timing chain. The distributor shaft should be turning if your timing chain is still intact. Have you pulled it out and reinstalled it? Maybe you did not get it seated right.
This must not be a '99 Silverado as shown in the heading? Give a reply back, and explain please. You replaced a fuel pump in the gas tank, and now the distributor shaft is not rotating? There is no plausible relation between the two-please explain.

Dec 27, 2013 | 1999 Chevrolet Silverado 1500

2 Answers

2000 chevy silverado v6 vortec engine, died driving, changed fuel pump, plugs wires, etc. and still wont start. ever heard of that


1st, check to see if the fuel pump runs for 3 seconds when you turn the key to run (not start). If it doesn't run, then check the fuel pump fuse & relay in fuse box under hood, if OK, (spray starting fluid in the intake to see if engine fires at all), if no fire then look towards the ignition as the problem. There are 5 things need to start an engine: 1. fuel (delivered & pressure), 2. air, 3. spark (distributor/ignition module or pickup coil), 4. rotation & timing, 5. compression. any of these that are wrong or not there, the engine fails.

Sep 20, 2011 | 1999 Chevrolet Silverado 1500

1 Answer

Turn key to start and nothing happens. All lights are on, battery good. Doesn't turn over---nothing. Switch or starter or some kind of relay??? HELP!!!


For 1999 Buick LeSabre - but you took #1 off the list, so here's the whole "failure to start" list:

Priority Action Part Type Cause
1 Inspect Battery Battery Discharged or Faulty.
2 Inspect Battery Cable Corroded, Broken, Shorted or Poorly Connected Battery Cable.
3 Inspect Distributor Cap Distributor Cap Cracked or Burned.
3 Inspect Fuel Filter Clogged or Dirty Fuel Filter.
5 Inspect Ignition Coil Faulty Ignition Coil.
6 Inspect Wireset Worn, Damaged or Faulty Spark Plug Wire(s).
7 Inspect Spark Plug Incorrectly Gapped or Fouled Spark Plug(s).
8 Inspect Starter Starter Motor Faulty.
9 Inspect Fuel Pump Low Fuel Pressure.
10 Inspect Starter Relay Faulty Starter Starter Relay
11 Inspect Fuel Pump Relay Faulty Fuel Pump Relay.
12 Inspect Fuel Injector Pressure Regulator Faulty Fuel Injector Pressure Regulator.
13 Inspect Ignition Switch Improperly Connected or Faulty Ignition Switch.
14 Inspect Starter Motor Faulty Starter Motor
15 Inspect Fuel Injector Dirty or Worn Fuel Injectors.
16 Inspect Fuel Pump Strainer Clogged or Dirty Fuel Pump Strainer
17 Inspect Engine Control Computer Incorrect Operating Information Being Delivered and Sent From The EEC.
18 Inspect Fuel Tank Fuel Tank Empty.
19 Inspect Carburetor Carburetor Flooded or Faulty Choke.
20 Inspect Distributor Rotor Distributor Rotor broken, burned contacts, or loose
21 Inspect Distributor Worn, Loose, or Incorrectly Installed Distributor.

Sep 12, 2011 | 1999 Buick LeSabre

2 Answers

Whats the firing oder for a chevy big block 572 crate motor


If it follows the normal big block chevy order, it is: 1-8-4-3-6-5-7-2

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Hope helps (remember rated this).

Jul 13, 2010 | 1993 Chevrolet Caprice

3 Answers

I have a 98 chevy blazer that will not start unless we s pray starting fluid in it we have replaced the fuel pump, injectors, distributor, and throtle body. All the pressures are fine. What else could it...


before u change anything else,,,,put a scanner on it ,,snap on,, mac ,,metco,,& while cranking it reed the variables in each , to even see if their work in ,,or get a spark tester,,their cheep,,plug it in,,turn motor over,,if no spark,,could be pickup coil,,cam,,or crank censer,,hoped it helped

Apr 28, 2010 | 1998 Chevrolet Blazer

1 Answer

Need firing order diagram for 91 s10 blazer


991 Chevy S10 firing order
The firing order for a Chevy s10 depends on which engine you have.
1.9L engine the firing order is: 1-3-4-2 . Distributor rotates counterclockwise.
2.0L engine the firing order is: 1-3-4-2 . Distributor rotates clockwise.
2.5L engine the firing order is: 1-3-4-2 . Distributor rotates clockwise.
2.8L engine the firing order is: 1-2-3-4-5-6 . Distributor rotates clockwise.
4.3L engine the firing order is: 1-6-5-4-3-2 . Distributor rotates clockwise.

Jan 09, 2010 | 1991 Chevrolet S-10

3 Answers

My son has a 1996 Volvo 850 GLT Wagon and he needs the spark plug diagram. He changed the plugs, rotor, and distributor cap and the vehicle will not start. He did this work because the engine was running,...


Don't know your engine size so pick the correct one for your motor:


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2.3L 4-Cylinder Engines Firing Order: 1–3–4–2 Distributor Rotation: Clockwise


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2.8L 6-Cylinder Engine Firing Order: 1–6–3–5–2–4 Distributor Rotation: Clockwise


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2.9L 6-Cylinder Engines Firing Order: 1–5–3–6–2–4 Distributorless Ignition


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2.3L and 2.4L 5-Cylinder Engines Firing Order: 1–2–4–5–3 Distributor Rotation: Counterclockwise

Oct 12, 2009 | 1996 Volvo 850

1 Answer

Removed & replaced dist. cap and rotor on 1993 S10 Blazer 4.3 V-6


The firing order for a Chevy s10 depends on which engine you have. 1.9L engine the firing order is: 1-3-4-2 . Distributor rotates counterclockwise. 2.0L engine the firing order is: 1-3-4-2 . Distributor rotates clockwise. 2.5L engine the firing order is: 1-3-4-2 . Distributor rotates clockwise. 2.8L engine the firing order is: 1-2-3-4-5-6 . Distributor rotates clockwise. 4.3L engine the firing order is: 1-6-5-4-3-2 . Distributor rotates clockwise.

Jul 03, 2009 | 1993 Chevrolet S-10 Blazer

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