Question about 1986 GMC Safari

1 Answer

Engine cranks slowly after overhaul

Starter wires are getting hot gettting fuel and spark but engine wont start

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

The only thing i can think of is
1. did you check the journal clearance to the main and rod caps? if this isnt within specs could be too tight.
2. did you put the rod caps and main berring caps on the same way you took them off....ie did you mark every thing 1 for #1 2 for #2 ect. if you installed the berring caps the oppsite way or didnt keep them in order some thing could be out of round causing tightness.
3. the same goes for pistons.......the mark should be pointing front for all. (ch approiate engine rebuild for info)
i would recomend trying to remove all spark plugs and try to turn the engine by hand( DO NOT TURN IT BACKWARDS>see which way the starter turns the motor) feel how it turns. if its hard then easy some thing is out of round poss installed wrong. personally id take down the pan and check the install. also take valve covers off ck the clearence of rocker arms. check your pushrods valve motion ect. you might also might want to break it down before you do some expensive damage.
tip.....if you didnt mark the rods and main berring caps and might have put them together incorrectly, remove the berrings and look at the honing marks. with patience and a good light you can see if they are lined up(cap and block for mains and cap and rod for connecting rods.) ie the cross marks line up.
good luck

Posted on Jul 13, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

2010 nissan versa got in a collision. Wont crank over. Would the fuel inertia switch cause this?


Fuel inertia switch stops the fuel pump running in the case of a collision causing a broken fuel pipe which otherwise could spray a litre of petrol every few seconds and rather spoil someone's day.

Certainly a tripped inertia switch would prevent the engine from starting but I doubt it would stop the engine cranking, though I don't have up to date information on the model and there could be different safety regulations where you are.
The inertia switches are accessible and resettable so why not just reset it and try again. Your vehicle handbook will have the details.

An immobiliser stops the the engine cranking on some vehicles as well as stopping the spark and injection and often the fuel pump.
Bridging the battery positive wire to the solenoid to make the starter crank the engine won't be switching the rest of the stuff back on.

Feb 06, 2015 | 2010 Nissan Versa 1.8

1 Answer

93 Geo Storm standard Transmission 1.6 Engine Lately I have to push start it Replaced ignition switch Checked all the fuses Starters good Help 48 disabled female


bad fuel, is it old? fuel.
needs tuneup, air cleaner and spark plugs , at least.
if the starter cranks fast and dont' start,
but does push started. that means the spark is weak
when cranking, and marginal spark plugs can do that.
this car is really (under Geo snake skins) a
an Isuzu Impulse
and Isuzu is defunct there too. (double bad)

now my real guess......analysis...
im not sure your order stated.
the engine would not crank over with a key before the new switch or after?
and "starters good", does that mean , it still fails to crank start with key
but the hot wiring of starter does?
try this:
tell use what happens when you turn the key, is best.
I turn the key, and i get the dash board to light up,
lots of lights. and the CEL LaMP GLOWS.
the CEL lamp, means the ENGINE brain is alive.
then you turn the key to cranks (start) position.
  1. nothing happens.
  2. it only clicks
  3. it cranks slowly,
  4. it cranks fast, just like a new car does. fast. cranking.

1,2,3,4.?

and does jumper cable starts work>?
if this works , your battery is low. , discharged or dead, or bad.
if the battery keeps going low, its bad, or the alternator fails to charge the battery, or you have phantom drains , discharging it as you sleep.

my guess, (based on most common)
is #3, slow cranks, and spark plugs are long since gone.(fouled and gaps no longer in spec>)

Nov 01, 2014 | 1993 Geo Storm

1 Answer

Will srart by the starter but not by the ignition and won't stay started


First let's define some terminology. The job of the starter motor is to "crank" the engine, if it does this, weather the engine runs is going to depend on the fuel system and the ignition system and good compression. Try this: with one hand, hold the key it the "crank" position, with your other hand, move the gear shift (slowly)from park to reverse to neutral to drive. Make sure you foot is on the brake as it may start in gear. If it starts while doing this, you have a bad neutral safety switch.
Also, It wont stay running when you crank it by jumping the starter if the ignition switch is off. Try doing it again with the key on. If it starts with the key on, and you jumping it at the starter, you probably have a bad, or out of adjustment, ignition switch. If it does not start, with the key on and cranking by jumping the starter, then you probably have a fuel or ignition problem.
Try the above and get back to me. I can walk you through how to check for fuel and spark if it still wont run.

Mar 09, 2014 | 1992 Cadillac DeVille

1 Answer

My 1991 ford festiva wont crank replaced fuel pump and screen and fuel filter and fuel pump relay still wont crank and we have pushed the reset button what now help pls


Won't crank? Problem is with starter-have it tested.
If it cranks and won't start, check for spark at one of the spark plug wires. If no spark when the engine is cranking, the ignition circuit is the problem.

Mar 01, 2014 | 1991 Ford Festiva

1 Answer

2002 yukon denali xl wont start


Does the starter crank the engine over? If so, check for spark on a spark plug wire when cranking. If you have a strong blue spark, ignition is probably good. Check fuel pressure. Do you hear the fuel pump turn on for 2 seconds when turning key to on?

Dec 15, 2013 | Cars & Trucks

2 Answers

Car wont start


Hi,
If the engine cranks over normally when you attempt to start you car, but the engine does not start, the problem may be NO FUEL, NO SPARK or NO COMPRESSION. The engine needs adequate fuel pressure, a properly timed spark and normal compression to start.


1) To find why the engine won't start, remove the air inlet tube from the throttle body, push the throttle open and spray a small amount of aerosol starting fluid into the engine. Crank the engine. If it has spark and compression but NO FUEL, it will start and run a few seconds before dying. If it does NOT start, it probably has NO SPARK.

2)Another method to check for spark is to pull a spark plug wire off of a spark plug (if it has plug wires, coil-on-plug ignitions do not) and place the open end of the plug wire near a metal surface on the engine. Have a helper crank the engine while you watch for a spark. DO NOT hold the wire while doing this as it can shock you. If you see a spark, the problem is not spark, but most likely NO FUEL or NO COMPRESSION. If you do not see a spark, the problem is in the IGNITION CIRCUIT.

3)Proper fuel pressure is critical for fuel injected engines to start and run. You should hear the fuel pump inside the fuel tank buzz for a couple of seconds when the ignition is turned on (no buzz means the pump is not running and the engine is not getting fuel). You can smell the tailpipe for gasoline vapors after cranking the engine. If you smell gas, the problem is likely not fuel but NO SPARK. You can also remove the plastic cap and press the schraeder valve test fitting on the fuel rail to see if there is any fuel pressure to the engine (not a very accurate test because fuel pressure must be at a certain level for the engine to start, for that you need a gauge). Even so, no fuel at the fuel rail would tell you fuel is not getting to the engine..


Thank you !!

May 19, 2010 | 1989 Oldsmobile Delta 88

1 Answer

1998 caviler wont start.has compresson. has fuel


You will not have a hot wire on the fuel injectors. The go for the injectors is a monentary high which means even when cranking over you will not see it with a multimeter. When cranking over after a bit you should smell gas if not you are probably not getting fuel. If you smell gas the you are probably not getting spark. This is most likely the senerio since you couldn't start it with starting fluid. By the way don't do that very often because it can damage your engine. There are several areas to look if you have no spark. The first is the distributor, the second is your coil and the last is your computer. Good luck. Please rate the helpfulness of my answer.

Dec 30, 2009 | 1998 Chevrolet Cavalier

4 Answers

93 chevy s10 wont start


Does it crank the engine ? If not take a look at the starter connections and the starter.Replace the starter if nessesary.
Ok, now that you got the most common problems out of the way, you should check for spark at the spark plugs. Remove a spark plug and attached to the wire. Get a good pair of rubber gloves and put the thread of the plug to ground and crank the engine. The spark plug should spark a bluish spark. If it has an orange spark the spark plug or wire may be bad. if it does spark fairly good.

Check the fuel pump. if it has an electric fuel pump you should hear it when you turn the switch to on. It is a whirring sound. if you can't hear it. the Pump is bad or the shutoff valve turned off the fuel system. Check it to see if the button is up. If it is then the valve clicked off. Press it down. If it is down and there is no fuel the fuel pump is bad.

If it is a mechanical pump, take off the hose to the carb if it does have one. crank the engine . It should pump gas right away.

If it does have spark or fuel to the sytem, then it is a sensor or other problem.You will have to get a trouble code for it. to narrow everything down.

Check the timing belt or chain to see if it is still good and tight. If it is not your timing belt or chain skipped or cut off. you will have to replace it.

I hope you can get some help from this info . good luck

Feb 06, 2009 | 1993 Chevrolet S-10 Blazer

1 Answer

2004 Kia Sedona wont start but i can hear starter.


if the starter is revving very slowly it is the battery, charge battery. if not, It can be three things happing. 1 no spark 2 no fuel 3 no crank signal or the car computer is bad- you will need to unplug one of the spark wires and remove the spark plug and put the spark plug in the spark plug wire boot, and touch the spark plug on any metal on the car and have some start the car. donot touch the spark plug itself and see if there is a spark. if spark is bright, then it is not spark plug and wires but if no or spark is not bright, check the spark plug wires by applying a little bit of water on the spark plug wire and take a 12v test light, connect the clap to ground and and have some one to crank the vehicle, touch allover the spark plug wires with the tip of the test light, if you see spark, replace the wires and change the plugs.. they are not good. if spark is present, check for fuel by removing any one of the spark plugs and see if it is wet. if wet fuel pump is ok but if not go look for the fuel pump fuse and relay. is fuse blown, replace, check the relay resistor with a volt meter. it should be around 40 to 80 ohm. if everything is good from this point check the fuel pump itself by disconnecting the connector to the pump and apply 12v and ground using jumper wires or some wires to the fuel pump if you donot hear the pump,replace pump. if you, the crank signal or computer may be the problem

Jan 02, 2009 | 2004 Kia Sedona

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

Related Topics:

122 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

61292 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

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

Answer questions

Manuals & User Guides

Loading...