1989 Ford F-150 Won't Rev

Tiny
ULLR88
  • MEMBER
  • 1989 FORD F-150
Engine Performance problem
1989 Ford F-150 6 cyl Four Wheel Drive Manual

I have a 1989 Ford F150 with the in-line 6-cylinder. It starts pretty easy but will not rev above 2000 rpms. The engine pops when I try to rev. I changed the plugs, wires, cap and rotor. I would appreciate if someone could possibly tell me what they think could be wrong with it before I start buying sensors. It's a very nice truck and I would like to get it on the road.

Thank you.
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Wednesday, September 22nd, 2010 AT 9:49 PM

7 Replies

Tiny
CJ MEDEVAC
  • EXPERT
What about while driving, does it act like it doesn't want to accellerate, especially while pulling an incline?

Maybe Mr. Fuel Filter is stopped up, thus restricting fuel flow. Last time it was replaced?

If its been a while, this surely, will not hurt anything.

I hope thats your problem!

The Medic
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Wednesday, September 22nd, 2010 AT 10:38 PM
Tiny
ULLR88
  • MEMBER
Everything u said was right. I just got the truck a few weeks ago. I am goin to replace the fuel filter tommorow. Thank you
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Wednesday, September 22nd, 2010 AT 10:41 PM
Tiny
CJ MEDEVAC
  • EXPERT
When you remove the retainer clips, COVER THE FILTER AND LINE WITH A RAG, when you pull it off of the line ("O" ring seal) You might get SPRAYED!

If this fixes you up, return and make me sound good in "Feedback"

May the Force be with you!

The Medic
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Wednesday, September 22nd, 2010 AT 11:18 PM
Tiny
ULLR88
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Still doin the same. U know of any other ideas? Thank You
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Thursday, September 23rd, 2010 AT 11:06 PM
Tiny
CJ MEDEVAC
  • EXPERT
OK, lets try a little more agressive!

Lets pop the distributor cap,

See if your rotor button is tight (pushed on well, maybe the hold down screws are loose)

If its been a while, replace this and the distributor cap

Maybe more overlooked maintainence, neglected

How 'bout them plug wires, whats their story?

A repair Manual would really assist you in what should be done and when

http://www.2carpros.com/articles/mitchell1eautorepair-car-repair-manuals

READ THRU IT!....Has a Troubleshooting section! Keep it in your rig for emergencies!

I'm done preaching!

Lets remove the Ignition Module---Call Autozone and Advance Auto, See If they can test THIS ONE (they should be able to)FREEEEEEEE!!!

Yours is on the side of the distributor.....I just put one on a Truck less than 2 months ago (Dead Truck) Autozone about $40??? Test yours 1st!!

In order to remove this deal you will need a SPECIAL TOOL, it looks like a Drawer Knob with a allen wrench end (you probably do not have that size, as I did not, once upon a time.

When you have this puppy tested, get them to do it 5-7 times, in a row, this will warm it up inside (or whatever) If it starts failing on any of the last 3 times , replace it...........Test the new one the same way before you leave.....Don't Ask....Just do it!

Installing your old one back on is going to require a heat sink grease----get a little pack at the parts house.

While you are in the distributor, try to move the shaft, SIDE to SIDE----Looking for play or wobble in the shaft (Not slack in turning it, its normal to have some there)

Inspect all of your parts (that we are dealing with) for damage and excesssive wear

I do not mean to make you start buying stuff, but something you should have already done, might be your problem.

Reply with wonderful news!

Like you bought a CJ 5!

Your Turn

The Medic
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Friday, September 24th, 2010 AT 12:13 AM
Tiny
ULLR88
  • MEMBER
I replace rotor and cap, plugs and wires.I will have the ignition module tested tomorrow. Thank You for the help.
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Friday, September 24th, 2010 AT 12:18 AM
Tiny
CJ MEDEVAC
  • EXPERT
Just thought of another deal,

Take him by a Muffler shop and have the Catylitic Converter checked, it may be stopped up! (Or partially)

Sorry I did not include this in my last answer!

The Medic
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Friday, September 24th, 2010 AT 12:20 AM

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