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Up hill engine pinging

I have a 1998 ford explored and when ever Im going up a hill at about 55-65 mph there is a pinging noise?

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  • Cars & Trucks Master
  • 3,103 Answers

Too low octane fuel usage..overdrive not shifting out so engine is at lower rpm for the demand..

Posted on Dec 26, 2013

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 48 Answers

SOURCE: the car will not accelerate;

this sounds like 1 of 2 possible problems.
a bad headgasket or a clogged catalytic convertor. i would lean more towards the convertor

Posted on Jul 16, 2008

  • 4369 Answers

SOURCE: 1998 Ford Explorer timing problem

FORD: 1997-2000 EXPLORER, MOUNTAINEER
ISSUE: A "knocking" noise at start up for up to 2 minutes from the left hand front chain cassette area may occur on some vehicles. After engine shutdown, the tensioner oil supply gallery empties. The noise may be due to air entering the left hand tensioner when the engine is restarted.
ACTION: Replace the left hand camshaft tensioner with a revised Tensioner Kit. Refer to the Instruction Sheet within the Tensioner Kit for service procedure details.
tx2605~us~en~file=caution.gif~gen~ref.gif WARNING: THE XU2Z-6K254-AA TENSIONER KIT IS FOR INSTALLATION ON THE LEFT SIDE OF THE ENGINE ONLY. INSTALLATION OF THIS KIT ON THE RIGHT SIDE OF THE ENGINE MAY RESULT IN ENGINE FAILURE. IF A TENSIONER IS NEEDED FOR THE RIGHT SIDE OF THE ENGINE, USE KIT XU3Z-6K254-BA.
PART NUMBER PART NAME XU2Z-6K254-AA Tensioner Kit - Left Side XU3Z-6K254-BA Tensioner Kit - Right Side

SECTION 303-01B: Engine — 4.0L SOHC 1998 Explorer/Mountaineer Workshop Manual
IN-VEHICLE REPAIR Timing Drive Components —LH Hydraulic Chain Tensioner Removal and Installation

  1. Remove the upper intake manifold. For additional information, refer to Intake Manifold—Upper in this section.
Intake Manifold —Upper Removal
  1. Disconnect the battery ground cable (14301). For additional information, refer to Section 414-01 .
  1. Remove the air cleaner outlet tube (9B659); refer to Section 303-12 .
  1. Remove the bolts and the accelerator control splash shield.
  1. Remove the accelerator cable (9A758) and speed control actuator cable (9A825).
    1. Pull up on speed control actuator cable to remove.
    1. Rotate the throttle body cam and remove the accelerator cable from the cam.
  1. Remove the screws, the accelerator cable and speed control actuator cable.
  1. Disconnect the RH upper intake manifold vacuum connection.
  1. Disconnect the idle air control (IAC) valve electrical connector.
  1. Disconnect the TP sensor electrical connector.
  1. Disconnect the engine vacuum regulator (EVR) and the variable induction system (VIS) solenoid electrical connections.
  1. Disconnect the crankcase ventilation hose (6853).
  1. Disconnect the power brake booster vacuum line.
  1. Remove the 12 bolts.
  1. NOTE: Inspect the O-rings and replace as necessary.
    Disconnect the LH fuel vapor management valve (VMV) hose.
  1. NOTE: Inspect the O-rings and replace as necessary.
    Disconnect the RH VMV hose and remove the upper intake manifold.
  1. Remove the thermostat housing. For additional information, refer to Section 303-03 .
  1. Remove the LH camshaft tensioner.
    • If using a new washer, tighten to 44 Nm (32 lb-ft).
    • If using the old washer, tighten to 67 Nm (49 lb-ft).
  1. Remove the pipe plug, and the oil volume reduction plug.
  1. NOTE: Be sure to install the new oil volume reduction plug supplied with the hydraulic chain tensioner.
    To install, reverse the removal procedure.
please rate as fixed if this helps you

Posted on May 03, 2009

  • 713 Answers

SOURCE: ford explorer making loud roaring noise at 35 to 45 mph

what year is your explorer, if it is a newer one say within the last 10 years it could be from either the rear end or it could be from a hub bearing in the front end. these have problems with hub bearings going out.

Posted on Aug 28, 2009

B-Roosky
  • 59 Answers

SOURCE: my ford explorer reverse do not work

change the fluid and filter in the transmission ASAP and that should take care of your problem. if you drive it too long like that you may not be able to save it.

Posted on Jan 12, 2010

rutherford_m
  • 63 Answers

SOURCE: 1998 ford explorer 4wd makes a clunking noise when

The clunking noise could be coming from three different areas. Either the front or rear differentials could make that noise along with the transfer case. I would initially be looking at the transfer case as the culprit since you mentioned the 4wd light coming and going. My thinking is that the 4wd engagement solenoid is malfunctioning and trying to bring in the 4wd, then releasing it. The only good way to check the function and noise for this is to put the car on a lift.

Posted on Apr 27, 2010

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3 Answers

How do I fix this Pinging noise and lack of acceleration on my 1998 Ford Expedition?


As a vehicle ages, the timing gets off, and the Octane of fuel will compensate for an out of timing vehicle.
Bad gas is main culprit, also dirty/clogged fuel filter, or clogged carberetor or injectors!
Use a "GOOD" fuel system cleaner for the next 3 tankfuls, and use a higher octane fuel at the same time!!! This is important. After 3 tankfuls and 3 additions of a Fuel System Cleaner, go back to a lower octane fuel. Drive up a hill and see if the problem is gone. If not, then either take it to a mechanic and check timing, hopefully you replaced the fuel filter by then.

Apr 30, 2015 | 1998 Ford Expedition

1 Answer

When I accelerate up a hill there is a noise that sounds like it might be fuel injectors, its a 'ticking' type noise, you only hear it when accelerating up a hill.


This noise is called pinging (preignition) this can be cause by carbon build up on pistons and valves or EGR SYSTEM NOT OPERATING CORRECTLY . and last low octane gas or engine running hotter than normal,

It sounds like it does this while under a load, like going uphills, i would have the egr system checked, being a 2000 escort i would think the computer would pickup on the egr system not working and turn engine light on. This could also be caused by bad o2 sensors setting fuel mixture at a lean condition. good day

Jul 15, 2012 | Cars & Trucks

1 Answer

Ford explorer making loud roaring noise at 35 to 45 mph


what year is your explorer, if it is a newer one say within the last 10 years it could be from either the rear end or it could be from a hub bearing in the front end. these have problems with hub bearings going out.

Aug 28, 2009 | 1998 GMC Jimmy

1 Answer

Wouldn't start, switched with a starter from the junkyard...still not starting, just a "ping" noise when you turn the key


Hi..my name is Keith...i have 3 probable causes..the simplest cause is the Starter Solonoid(if a 1998 has one..im not sure)..or the starter ice cube realay(which would be located under the hood in the power distrubition box)...or it has a bad neutral safety switch..i hope this helps..if it dont let me know

Jun 28, 2009 | 1998 Ford Explorer

1 Answer

Squeaky noise coming from engine will driving


yes, it could be the idler pulley going bad.
check it out

or the belt itself is almost done.

replace belt every 50,000 miles

Jun 24, 2009 | 1998 Ford Explorer

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