2007 Escalade ESV
Recently replaced Battery, spark plugs, wires, and fuel pump (Fuel Pump Replaced in last 48 hours)
Issue: Since I bought the truck it had a little “bouncy” idle at times, but I always thought that it could be a little rough due to some worn engine mounts. Well, on Monday of this week I was headed from Lubbock to Austin and around two hours outside of town I had to take a detour and come to a stop sign. As we approached the truck started acting like it was going to die, as if it was starving for gas, I tried to give it throttle to keep it alive but it died and wouldn’t restart. I smelt a little gas as a few seconds after. After having a local person town me about 30 minutes down the road, and me continuing to try to start it, it eventually turned over. I hauled back to Lubbock and dropped it off at a Christian Brother automotive. I want to note that when I was trying to start it, the starter was running and trying to fire the engine, but it just wouldn’t catch. I was not getting a clicking noise or anything that would make me think it was the battery. It was about 102 outside so my initial thoughts were Fuel Pump.
The next morning the mechanic hooked it up and checked the fuel pressure. He said it was fine at cold start but lost pressure as it heated up. That being said the shop told me they were 100% sure it needed a fuel pump. I took their word for it and $800 later I was back on the road. The truck ran awesome and the “bouncy” idle that I always experienced was gone 100%. I was confident that the issue was resolved but 5 hours into the trip home to Austin….I pulled in for gas, turned off the truck, went to restart it, same situation as the day before.
After being really pissed off and trying to start it with my keyfob, and different throttle placement starts, I waited it out for 20-30 minutes in the shade, with the hood open. Put my foot down about halfway on the pedal, turned the key, and it caught. I hauled ass back to Austin and now it is BACK at Christian Brothers Auto (Mechanic) where they spent ALL DAY yesterday trying to get the thing to fail without any results. This place wants to fix it and make it right since which is wonderful, but how do you diagnose an intermittent issue!?!?!?
In all of these situations the tank was overfull, so I don’t believe that it was the Charcoal Canister..but I’m open to any suggestions.
My hope is that one of you has some ideas that I can share with this shop. Fingers crossed because this is my wife and 1 year olds truck and I do not want this happening when I am away!!!! Frustrating.
Thanks and sorry for the novel.