Question about 1998 Ford F150 Regular Cab

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1998 f 150 auto trans, knocks

1998 f 150 auto trans, after 5 miles it knocks around converter, it dont knock at startup or idle, but after knock you cab hold break an gas knock stops

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  • bargainbin2
    bargainbin2 May 11, 2010

    Can you tell me a little more about the knock. What do you mean gas knock.



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Torq converter bolt are loose or gone

Posted on Oct 24, 2009


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I have a 91 caprice make knocking noise when I crank it

if auto , check the flex plate at the torque converter for cracks
check ring gear for burrs
possible big end bearing
possible piston or broken ring
test by removing a plug and cranking it replace the plug and go to the next plug
repeat the process until the knock stops with that plug removed

Apr 23, 2015 | 1991 Chevrolet Caprice

2 Answers

Low end knocking noise; 220K miles;

sounds like a bad rod bearing. if auto trans put in drive hold brake firmly with left foot gently push on gas pedal with right foot if knocking increases with engine rpms bad rod bearing time for engine rebuild

Dec 27, 2013 | 2002 Nissan Xterra

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94 cavalier top end knock

From your description of the knocking, mileage, and oil crusted on the intake valves you need an engine or a complete rebuild of the original.

Apr 21, 2013 | 1994 Chevrolet Cavalier

1 Answer

2003 trailblazer has a knock in steering not all the time but sometime also a whining sort of like the power steering pump but dont do it much either

Have you been changing the power steering fluid every
30,000,miles when doing the trans fluid at 30,000

When you do that add some lubgard for P/S
just don't use the honda version

Get the Fluid at the dealers parts counter
& lubgard at auto parts

The knock may be a worn steering rack if you have one.
That happens when the fluid isn't changed

Jun 09, 2011 | 2003 Chevrolet TrailBlazer

1 Answer

Hello...I have a 1990 Ford F-250 with 70,000 orginial has the 300 6 with a auto has a knock when I put it in mech said it was a bad wrist pin...come on...the 300 6 is one of...

I would probaly agree, these are very reliable engines.Most of the time a bad wrist pin wull be noisy at load and higher rpms, not at idle in gear.Cracked flywheel is possible , loose converter bolts is unlikely since ford uses a crimped bolt.These engines sometimes will build up carbon on top of the piston and usually running a can of SEA FOAM through the intake will take care of it.The carbon can cause a slight knock and may sound like a wrist pin or rod bearing.Good luck!

Mar 13, 2011 | 1990 Ford F250

1 Answer

How to set idle 5-7 ltr

click on this site it should help you even has a diagram.. Search Results
  1. 1993 Chevy Caprice Knocking At Idle 1993 Chevy Caprice knocking at idle; If you're getting a knock at low RPM's, I recommend you ... 1993 Chevy Caprice V8 Two Wheel Drive Automatic 57000 miles ... > Chevrolet > Caprice

Jan 28, 2011 | 1993 Chevrolet Caprice

2 Answers

My engine idles rough

Check timing and timing chain. Aim a timing light at the crankshaft. If the markl jumps around a lot, your chain has jumped a cog, and will need to be replaced. You didn't change plugs and wires. That's always a good place to start too. You may have a dead plug or wire.

Aug 08, 2009 | 1987 Oldsmobile Cutlass Supreme

1 Answer

1994 BMW 540i does quick, short, unexpected downshifts

Dear sea_lion42, Friday 2-20-2009 11:22pm EST (USA)

Check your transmission fluid which is usually done with the engine warm and running!
If the tran fluid is low add some Lucas Trans Fluid from your local auto parts store!
The knock makes me believe your low on trans fluid!


Jan 23, 2009 | 1994 BMW 5 Series

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