![]() ![]() If you are running a stock Jeep Grand Cherokee, you basically have 2 choices: an all-terrain tire and performance touring tire.Īll-terrain or A/T tires will enhance the on-road and off-road capabilities of your Jeep. What are the best tires for Jeep Grand Cherokee in 2023? The tire will also need to be quiet and comfortable on the highway while providing high levels of grip in all-season driving. The tire will need to be tough enough to withstand the weight of the vehicle and provide adequate support in tough off-road or towing duties. With a fantastic combination of on-road and off-road versatility, choosing the best Jeep Grand Cherokee tires is not an easy feat. The combination is a bit odd, but there is no question the Jeep Grand Cherokee or JGC started the luxury SUV trend and still a mainstay in this highly-competitive SUV segment. It’s like wearing a suit and tie coupled with high-cut work boots. It is still the stylish, roomy, and off-road capable SUV that people have come to love.īut now, the new Jeep Grand Cherokee is the embodiment of luxury and refinement. The current generation Jeep Grand Cherokee is still a byword in the SUV category. The goal was to create a vehicle that is small enough for city use, roomy enough for an entire family, and capable of attacking harsh and unforgiving roads or off-road trails. The first generation Jeep Grand Cherokee was basically a reworked albeit larger version of the smaller Jeep Cherokee. Our list of the best tires for Jeep Grand Cherokee will cover all models of this fantastic SUV and will include both OEM brands and high-quality budget alternatives. This Wave is of Bank 1 Injector voltage, before things go crazy.Even before the advent of modernized sport-utility vehicles, the Jeep Grand Cherokee was already lording it over tough and inhospitable terrain. I have had about three different "Ah HA!" moments where I have found an issue and thought I found "THE" problem. And, I HAVE found both bad grounds AND voltage drops. This has all the indications of a bad ground/voltage drop. I, now, have control to Injector #5, but after a short warm up.POW! Die. It look like this HAS to be a bad computer. When doing voltage waveforms of the injectors, I noticed injector #5 was missing control. The coils and injectors are being grounded when they shouldn't be. The computer provides the grounds/control for the coils and injectors. I disconnected the ignition coils, one-by-one, and watched the current draw drop about 2 amps with each disconnected coil. I turned the key off killing the fuel pump. I restarted and soon enough, as expected.POW! Die. I wanted a way to leave the key on/fuse in and investigate the 40+ amp current draw without fuel spewing, so I removed the load from the ASD and applied it directly to battery positive, supplying power to the coils and injectors with key on or off. Coils hot to touch.fuel spewing out of throttle-body. Now, I restarted and, again, Backfire and Die. With a thermal imager, I found and repaired a voltage drop at splice (S128). When the backfire occurred, the amperage shot up to 42 amps (on a 30 amp fuse) and the wire became very warm. After clearing the flood, I put an amp clamp around the ASD relay LOAD circuit and restarted. ![]() He said a backfire destroyed it.) I pulled Fuse 6 and it stopped. Suddenly, fuel started spewing out of the throttle body. All the while, the EVAP purge solenoid and injectors were clicking. It was not blown, but I could see the solder points, now, looked dull-grey and not smooth. I look at the fuse, which used to have nice, shiny solder points. Fuse 6, the 30 amp fuse for the ASD relay was blown. But, before I could get the scanner connected, it backfired and died. When it was first brought in (on a truck), it drove into the shop without problem. This is my policy and have not, yet, had to let one go unfixed/unsolved.īut, this thing has been kicking my butt, for days. I told him that if I couldn't fix it, I wouldn't charge anything. He said that he heard I was the guy that could fix it. He gave me a list: New Idle Air Control, ECT sensor, new "computer screws", Coolant flush, Tranny service, Spark plugs, Ignition Coils, Starter, Battery, CKP sensor, water pump, thermostat, and more. He said that after it dies, the gauges "go crazy", there is a lot of "clicking" under the hood, and fuel sprays out of the air intake. A customer came in complaining of a 2002 Jeep Grand Cherokee 4.7 that will run for a few minutes without issue, but once warm, it will backfire and die. Life seems to have a way of humbling me, when I get too cocky. ![]()
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