DenLorsTools.com Summary: Duramax diesels that have misfires at low RPM’s and under a load could have faulty glow plugs. In extreme temperatures like in the middle of the summer or winter these type of problems are more likely to occur. In extreme winter weather is when most of our customers report issues. Usually when trying to change a glow-plug a common problem is breaking. That’s when our phones start ringing and the most orders for our W900-0199’s come in through our two websites (DenLorsTools.com and WiseAutoTools.com). We are providing this tech article to inform our customers about options for removing broken glow plugs without removing the cylinder head.

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Power window problems? Read on for free tips.

© DenLorsTools.com Summary: Tips on pinpointing power window problems. Broken power windows are usually caused by one of several things. The most common problem is a bad power window motor. The second most common problem is the regulator, followed by a bad power window switch. If the window regulator is broken it could be binding or the cable could be off one of the pulleys. In a few cases, the window may just be STUCK. This happens sometimes in rear windows that get little use. The weather stripping that the window slides in (AKA called a window run) can sometimes prevent the window from moving.

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Jeep Liberty rear door panel.

A Jeep Liberty window is falling down into a door at the alarming rate of one every minute! Kidding aside the Jeep Liberty does seem to have problems with a weak design for the window regulator. Typically the motor can be heard and the window can be raised by hand and temporarily taped in the up position until a replacement part can be purchased. The good news is that it is a really simple job even for a do it yourself-er (DIY), see the tips below.

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New Specialty tool for handling Ford broken spark plugs!

© DenLorsTools.com If you’re a subscriber to our automotive tool blog, you know we pointed out in a previous post, the need for a less expensive alternative to the Ford Rotunda 303-1398. The SPX Rotunda 303-1203 removes broken spark plugs on some Ford 5.4 engines, 2004 and up. But it only works after the broken porcelain piece is out of the way. That’s where the new Lisle LIS 65600 automotive specialty tool, comes into the picture. The best way to try to prevent Ford spark plugs from breaking to begin with (per a Ford Technical Service Bulletin-TSB) is to loosen the spark plugs slightly and then soak them with penetrating oil. Sometimes the carbon build up around the electrode shield will still separate from the main part of the spark plug. So, in many cases the porcelain part of the spark plug will stay in. This prevents the use of the 303-1203. Rotunda offers the SPX 303-1398 to remove the porcelain or ceramic piece, but the pins included in this six hundred dollar kit can only be used once. The pins are secured into the center of the broken spark plug (where the electrode was) with loc-tite, then the puller is used to hopefully pull the ceramic piece out of the way, so the two hundred dollar 303-1203 can be used to remove the metal electrode shield.

Lisle’s Method, using the LIS65600 auto specialty tool implements a different approach. First, if the broken porcelain is stuck down in the spark plug hole, the first part of the Lisle kit is used to press it down a little further without breaking it.

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