Autolite spark plug gap for 2005 ford ranger 3.0 engine

There is a little controversy about this. Searching the web, the best explanation I see is:

he 0.061-0.068 gap comes from the Ford OEM Service DVDs for 2003, 04 & 05, for the 4.0L Explorer, Explorer Sport-Trac, Mountaineer & Ranger, originally equipped with the Motorcraft AGSF22PM plug. Interestingly, in 2005, the Mustang started using the same 4.0L engine. In that application, the engine was equipped with the AGSF24N plug (a hotter plug). The gap on the DVD is shown as 0.052-0.056 in.

Through 2002, all 4.0L SOHC plugs, according to the Ford DVDs, are gapped at 0.052-0.056, using AGSF22PP plugs as replacement plugs.

The 4.0L SOHC is a waste spark engine, which uses slightly different plugs on the left & right banks.

Replacement plugs are usually double platinum, suffixed PP so they can be
used on both banks.

On the 2006 and later Ford DVDs, all 4.0L SOHC plugs are gapped at
0.052-0.056 in.

On the Ford OEM parts site, the AGSF22PM plug isn't listed. The replacement
plug for 2003-05 4.0L engines is the SP400, which is shown as having a gap
of 0.052-0.056 in.

The sites for Autolite, Champion and Bosch all list replacement plugs, for
those years as having a gap of 0.054 in.

Bottom line, it looks like the original plugs in the 2003-05 engines, except
for the 2005 Mustang, were gapped at 0.061-0.068 in. Replacement plugs,
regardless of manufacturer, are gapped at 0.052-0.056 (0.054), regardless of
electrode type (iron, copper, platinum, double platinum, or iridium.

Ask a mechanic he should let you know with no charge to you. they have that information.

I believe the factory originals are champion brand, and would have been platinum, but it should still run decent with the coppers. The only thing I can think of is they are of the wrong gap. Copper plugs do not come pre- gapped at all and need to be done by installer. The gap for your stratus, if it's a 4 cylinder is .050. Wrong gap will cause no power and shaking. Correct champion number in copper is #443, and should say that on the box/plug.

1.10 mm

Mr Bobby I manage to find in my books few things about your model on spark plugs. I hope will help you. Depends the make you have the Gap: 1. Autolite Ap606 Platinum Gap 0.60, 2. AC DELCO Professional Platinum Gap 0.60, 3. NGK G-Power Platinum TR55-1GP Gap 0.60, 4. CHAMPION RS12 PLP6 Gap 0.60, 5. CHAMPION COPPER PLUS RS13LYC5 Gap 0.60, 6. Platinum Alloy Gap 1,1mm if your engine size is 3.1,also for 3.1 3ngine DENSO TT PLATINUM Gap 0.04 inch. select and carry on .

0.042-0.046 is the correct gap for your spark plugs,If it is backfiring now and was not before make sure you were not sold platinum bosch plugs and if you are using factory plugs,then I be looking for a faulty spark plug.Also make sure the firing order is correct.

Hello there:
The recommended spark plug gap for a 2003-2004 Honda Odyssey is .044"
Keep in mind, many OE manufacturers (i.e. Denso, NGK) pre-gap their plugs for specific applications. If you happen to buy the iridium or platinum style plugs with the very thin center electrode, they should come pre-gapped. It can't hurt to check the gap before installing the plugs, but if any adjustment is necessary, do so with caution because the ultra-thin electrode may crack if any excessive pressure is placed on it.
Hope this is very helpful
Best regards Michael

These engines use platinum plugs-you don't gap these type of plugs because you will damage te platinum electrode and cause misfire problems. Make sure you use bosch platinum factory recommended plugs and if he vehicle has more than 75k i would recommend replacing your plug wires as well/

usually all brands recoment use platinum NGKs
those plugs are all set to install.
autolite is not recomented