1994 ford ranger 4.0l 5speed

20

Asked by Sep 13, 2016 at 08:43 PM

Question type: Maintenance & Repair

Hi I've got a 1994 ford ranger 4.0l 5speed.
Here's the problem I'm having it goes
down the road awesome but when you tac
it up "get more out of each gear" to gain
speed faster there's this clatter I here on
the right side up front somewhere. And it
gets louder the harder you hit the gas but
here's the kicker, when I put high grade
super fuel in and that's all you have in
there doesn't clatter abit, So I changed the
spark plugs thinking they where bad and
misfiring. They where old but they didn't
change anything. So I'm thinking now
could it be something with the fuel
system? Like fuel injectors or filter maybe
the fuel pump. The gas gauge doesn't
work maybe the fuel pump isn't right idk.
So what do you guys think about this.

1 Answer

49,375

Engine - Carbon Knock On Acceleration Article No: 01-19-7 10/01/01 ^ ENGINE - 4.0L OHV - CARBON KNOCK ON ACCELERATION ^ NOISE - CARBON KNOCK ON ACCELERATION - VEHICLES EQUIPPED WITH 4.0L OHV ENGINE ONLY FORD: 1990-1997 AEROSTAR 1990-2000 EXPLORER, RANGER ISSUE Some vehicles equipped with the 4.0L OHV engine may exhibit an engine noise which may be perceived by the customer as a piston/connecting rod bearing knock. This carbon knock is heard only under load during the drive cycle. Carbon knock is a customer drive duty-cycle phenomenon that cannot be repaired with an engine exchange. This may be caused by carbon build-up within the combustion chamber. ACTION Verify condition. If normal diagnostics fail to correct the condition, de-carbon the combustion chamber to help quiet the carbon knock noise. Refer to the following Service Procedure for details. SERVICE PROCEDURE 1. Use Motorcraft Carburetor Tune-up Cleaner PM-3. 2. Carbon removal: a. Disconnect canister purge line from throttle body. b. Attach a vacuum line to the canister purge port. c. At hot engine idle, allow the engine to ingest 1/2 to 2/3 of a can of Motorcraft Carburetor Tune-up Cleaner. Use caution not to ingest too quickly due to potential hydro-lock issues. d Shut engine off and allow it to soak for one hour. e. Start engine, allow engine to ingest the remainder of the Motorcraft Carburetor Tune-up Gleaner. f. Remove vacuum line and re-install canister purge line. g. Road test vehicle at 3500 RPM for 2-3 miles. h. Repeat above procedure two times for a total of three times. i. Change oil and filter. 3. Review the customers' driving habits. The recommended drive cycle should include daily periods of engine operation above 3,000 RPM, such as a brisk acceleration from a stop position. This will break/burn the carbon off the piston head. 4. Use regular unleaded fuel, 87 Octane. Mid-grade and Premium fuels may increase the probability of carbon buildup, leading to a knock noise. PARTS BLOCK OTHER APPLICABLE ARTICLES: NONE WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage OPERATION DESCRIPTION TIME 011907A Remove Carbon From 1.6 Hrs. Combustion Chamber (Includes Time To Perform Procedure A Total Of Three Times) DEALER CODING CONDITION BASIC PART NO. CODE 6108 42 OASIS CODES: 497000, 615000, 702000, 702100

Your Answer

Add photo

Related Questions

  • 1994 ford ranger 4.0l 5speed 1 answer

    Hi I've got a 1994 ford ranger 4.0l 5speed. Here's the problem I'm having it goes down the road awesome but when you tac it up "get more out of each gear" to gain speed faster there's this clatter...

    Maintenance & Repair

  • 1994 ford ranger 4.0l 5speed 4x4 1 answer

    I have a 1994 ford ranger 4.0l 5speed 4x4 and my gas gauge hasn't ever worked while I have owned it. But that's no problem to me when I press the gas it almost like there's a delay like if I'm co...

    Maintenance & Repair

  • 1998 ford ranger xlt 4wd 4.0l 1 answer

    I have a 1998 ford ranger xlt 4x4 4.0l I had a bad wheel bearing on the front left. The hub bolts onto the knuckle with 3 bolts on the rangers. I put a hole new hub assembly on bearing spindle and...

    Maintenance & Repair

  • 1994 4x4 ford ranger 5speed transmission troubles

    Just replaced my transmission with a rebuilt. New slave and master cylinder. When attaching the gear shifter it would freely move foreword and back. Then when attempting to put in 3rd or 4th it wil...

    1994 Ford Ranger XLT Extended Cab 4WD SB

    -

    Maintenance & Repair

  • 1994 Ford ranger 5 speed 1 answer

    My 94 ranger only drives in neutral and feels like 5th gear and can't get it to shit out of neutral whats wrong

    1994 Ford Ranger

    -

    Maintenance & Repair

Shortcuts

Search Maintenance & Repair Questions

Maintenance & Repair Experts

#1 Tom Demyan
Tom Demyan
Reputation 174,950
#2 dandyoun
dandyoun
Reputation 93,550
#3 tennisshoes
tennisshoes
Reputation 76,130
View All

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.