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View Full Version : 1998 Ford F150 4.6 L will turn over and over but will not start .


ALeighH
Feb 17, 2013, 08:55 PM
We changed coil packs, crank shaft sensor, cam shaft sensor, plugs and plug wires. Alternator been checked. Battery is charged. Fuel pump checked. Exhaust checked. Still won't crank. Has half tank of fuel. What do we check next?

TxGreaseMonkey
Feb 18, 2013, 07:41 AM
. Check all under hood and under dash fuses with a test light or multimeter.

. Check for codes.

. Clean main PCM ground.

. Check/replace MAF Sensor.

. Check ignition switch.

If the problem persists, the security system may be responsible.

ALeighH
Feb 18, 2013, 10:29 AM
. Check all under hood and under dash fuses with a test light or multimeter.

. Check for codes.

. Clean main PCM ground.

. Check/replace MAF Sensor.

. Check ignition switch.

If the problem persists, the security system may responsible.
We called a guy said it has jumped time.

TxGreaseMonkey
Feb 18, 2013, 10:31 AM
Ask him specifically what that means--I'm skeptical. Get a second opinion.

ALeighH
Feb 18, 2013, 02:34 PM
Ask him specifically what that means--I'm skeptical. Get a second opinion.

Ok! Will do. We did check all the fuses too. He said he would run a compression check on it. Said we could warp a valve if we weren't careful.

ALeighH
Feb 18, 2013, 02:36 PM
Ok! Will do. We did check all the fuses too. He said he would run a compression check on it. Said we could warp a valve if we weren't careful.

Also it would not show a code because battery had run down and I guess it reset itself.

bigdaddy66
Mar 9, 2013, 04:58 PM
Check canister vent solinoid its plugged.

ALeighH
Mar 9, 2013, 08:25 PM
Motor was blown. Had to take it to mechanic.