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Why won't my 1990 f250 300 straight 6 start - 1990 Ford F250

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Engine type


There are several engine types

1. 3 cylinder
2. Straight 4 cylinder
3. Horizontally opposed 4 cylinder
4. Straight 5 cylinder
5. Straight 6 cylinder
6. Horizontally opposed 6 cylinder
7. V-6
8. V-8
9. V-10

You can find all these engines in various vehicles produced in the last 20 year whether they be gas, diesel, carburated, fuel injected, super charged, or turbo charged.

Apr 28, 2016 | Cars & Trucks

1 Answer

I changed my valve cover gasket. and now my car won't start


Remove the cover and try to start without it. When starts then check on the cover maybe you put it wrong way. Or not straight. When still won't start might be something fell inside.

Nov 11, 2012 | Cars & Trucks

1 Answer

1986 350 engine changed timing chain won't start on #1 but starts and runs great if i set roder facing #6 dist cap is there two firing orders for this engine ?


THERE IS ONLY ONE FIRING ORDER FOR THIS IT HAS BEEN THE SAME SINCE 1960??? 18436572 WITH NO1 IF YOU ARE STANDING STRAIGHT IN FRONT OF THE ENGINE YOUR HEI DIST SHOULD HAVE 2 PRONGS STRAIGHT ACCROSS FACING YOU IF IT IS NOT YOU MUST PULL THE DIST, ROTATE THE ENGINE AROUND TO COMPRESSION STROKE, VERIFY THIS BY THE POINTER ON THE TIMING COVER SET IT TO 0 WITH THE PISTON IN NO1 CYLINDER UP IF NO 1 PISTON IS NOT UP FULLY EXTENDED IN THE SPARK PLUG HOLE YOU ARE NOT AT NO 1
IF THE PISTON IS FULLY EXTENDED AND YOU HEARD A AIR SOUND THEN YOU ARE RIGHT, PLACE THE DIST BACK IN TURN THE ROTOR 1 TO 2 NOTCHES BACK TO THE RIGHT AND HAVE SOME ONE CRANK THE ENGINE IN SPURTS, IT SHOULD DROP IN, THEN REPEAT THE PROCESS TO VERIFY YOU ARE ACTUALLY ON NO1 THEN BEGIN THE WIRING

Aug 22, 2012 | 1985 Chevrolet Chevy

1 Answer

2000 jeep grand chereokee 6 cyclindar straight line.


sounds like you may have a blown head gasket i would pull the head off and have it checked and put on new head gasket.
Hope this helps

Jul 30, 2012 | Jeep Grand Cherokee Cars & Trucks

1 Answer

2001 Jeep Cherokee Country 4.0 Litre Straight 6 , won't idle when warm


IAC (idle air control) can not maintain idle target speed4_14_2012_12_11_46_am.jpg

Apr 11, 2012 | Jeep Cherokee Cars & Trucks

1 Answer

My 1987 f250 efi straight 6 4 spd starts and then dies 90,000mi


Some years of the "F" series pickups had two fuel pumps,, one High Pressure and One Low Pressure.
It could be either one.

Jan 19, 2009 | 1986 Ford F 250

1 Answer

4x4 won;t unlock


start the vehicle, shift transmission to nuetral. then move the 4x4 shifter to the 2wd position. then shift the transmission into reverse and back up a few feet straight, then drive forwards. it should be out of 4x4.

Jan 12, 2009 | 2004 Jeep Grand Cherokee

1 Answer

Ford f150 1986


The firing order for the 4.9 L engine is 1-5-3-6-2-4, with the firing order rotation on the distributor cap going clockwise. For the 5.0 & 7.5 L engines, the order is 1-5-4-2-6-3-7-8, and the 5.8 L engine is 1-3-7-2-6-5-4-8. On all three of these engines, the distributor cap firing rotation is counterclockwise. Also, on the six cylinder 4.9 L engine, the cylinders are in a "straight six", with #1 cylinder starting in front, and going in order straight back to #6. The eight cylinder engines' cylinders all fire in order also, (standing in front of the vehicle looking back towards the firewall) with #1 being front on your left and going straight back to #4, and then #5 being at front right, going straight back to #8, with the distributor being front and center. Hope this helps you out.

Aug 13, 2008 | 1986 Ford F150 SuperCab

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