Hi Everyone! I am a new owner of a 99' Escalade

[preacherman22]

I just purchased a 99' Cadillac Escalade with a 5.7 Vortec with 240,000 highway miles. I got her for $800. I don't know alot about these trucks. But I do know the 5.7 is a very good motor. I use to own a 97' GMC Sierra Z-71 with the same motor. My new Escalade had alot of work done to it over the last year. The previous owner had put a new complete front-end in it, and stereo system. It's a Texas Truck, so it's CLEAN. He had replaced the spark plugs, but the truck still has a misfire (Running rough). He is a young kid, and I'm thinking since he didn't do the wires or distributor cap/rotor to complete the tune-up, that maybe that's why she's still running rough? She also has a slight lifter tick. Any advice on this truck would be a God send.Thank you.
Perry (Texas)

 

[swathdiver]

Welcome to the forum from Florida Perry! In a few hours the guys who know about your Esky will show up after they've had their morning cup of joe.

 

[preacherman22]

Welcome to the forum from Florida Perry! In a few hours the guys who know about your Esky will show up after they've had their morning cup of joe.

Thank you man! I appreciate that. I forgot to add, the truck has been sitting for 8 months too. Possible bad gas too?

 

[drakon543]

these 5.7 distributors are basically bulletproof or problem ridden so that's worth a look. try the carb clean around the intake while your in there playing around

 

[Miami-Dade]

I just purchased a 99' Cadillac Escalade with a 5.7 Vortec with 240,000 highway miles. I got her for $800. I don't know alot about these trucks. But I do know the 5.7 is a very good motor. I use to own a 97' GMC Sierra Z-71 with the same motor. My new Escalade had alot of work done to it over the last year. The previous owner had put a new complete front-end in it, and stereo system. It's a Texas Truck, so it's CLEAN. He had replaced the spark plugs, but the truck still has a misfire (Running rough). He is a young kid, and I'm thinking since he didn't do the wires or distributor cap/rotor to complete the tune-up, that maybe that's why she's still running rough? She also has a slight lifter tick. Any advice on this truck would be a God send.Thank you.
Perry (Texas)

Welcome from Miami Beach&NYC!

Check out the 91-99 section for any issues or questions you have. This is just the intro section. Thank You!

 

[Joseph Garcia]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please.

 

[OR VietVet]

Welcome to the forum

 

[B-train]

Nice find! The misfire could be a bad cap, but being that I sat for so long it could be gas related, or one of the spider injectors with a bad poppet. Look over the tune-up stuff, fill with new fuel, and run some good injector first before firing the parts cannon. It may clear up with some good use.

 

[Tonyrodz]

Welcome. Love the look of those year Escalades.

 

[preacherman22]

these 5.7 distributors are basically bulletproof or problem ridden so that's worth a look. try the carb clean around the intake while your in there playing around

Thank you much.

 

[Fless]

Welcome from the not-so-elevated part of Colorado!

 

[adventurenali92]

Welcome from Southern California! Post pics of the truck when you get a chance! We LOVE pics around here lol. Hopefully you’ll get everything straightened out. Lots of knowledgeable guys on here and lots of threads jam packed with info. Check out the threads in the GMT400 subsection of the forum under engine and drivetrain and I’ll bet you find an answer on the misfire. Also a good idea to get a bi-directional scan tool on it to see what codes it’s either throwing or are stored, and to see the engine data in real time to track down the misfire.

 

[adventurenali92]

I just purchased a 99' Cadillac Escalade with a 5.7 Vortec with 240,000 highway miles. I got her for $800. I don't know alot about these trucks. But I do know the 5.7 is a very good motor. I use to own a 97' GMC Sierra Z-71 with the same motor. My new Escalade had alot of work done to it over the last year. The previous owner had put a new complete front-end in it, and stereo system. It's a Texas Truck, so it's CLEAN. He had replaced the spark plugs, but the truck still has a misfire (Running rough). He is a young kid, and I'm thinking since he didn't do the wires or distributor cap/rotor to complete the tune-up, that maybe that's why she's still running rough? She also has a slight lifter tick. Any advice on this truck would be a God send.Thank you.
Perry (Texas)

After reading your first message, double check to make sure each spark plug is fully seated into its threads on the side of the block. The number 8 spark plug on the rear of the block that sits right up against the firewall on the passenger side of the engine bay is tricky and most people don’t get that plug fully seated into its threads when they do a spark plug replacement. That will cause a misfire so I would start there.

 

[preacherman22]

After reading your first message, double check to make sure each spark plug is fully seated into its threads on the side of the block. The number 8 spark plug on the rear of the block that sits right up against the firewall on the passenger side of the engine bay is tricky and most people don’t get that plug fully seated into its threads when they do a spark plug replacement. That will cause a misfire so I would start there.

Thank you so much! I'm not bringing her home till next Monday to start the trouble shooting. I appreciate you. I definitely will do that. Y'all can expect photos and updates in the next 7-8 days! Stay tuned!

 

[preacherman22]

Welcome from Miami Beach&NYC!

Check out the 91-99 section for any issues or questions you have. This is just the intro section. Thank You!

Okay. Thank you. How do I find the sections?

 

[Miami-Dade]

Okay. Thank you. How do I find the sections?

Just keep scrolling down the page and you will see it.

First section is the 21+section..then is the 2015-2020 section..Just keep going down.

 

[preacherman22]

Just keep scrolling down the page and you will see it.

First section is the 21+section..then is the 2015-2020 section..Just keep going down.

Thank you man!

 

[RAMurphy]

Welcome to forum.

 

[preacherman22]

Welcome to forum.

Thank you!

 

[Hoesgottaeat2]

Welcome to TYF from NY!

If you know the former owner replaced the plugs only, I'd complete the tune up with new distributor cap and wires so you have a known starting point. My dad always started with those simple things when taking ownership of a "new-to-him" vehicle. I myself try to do the same.

And good luck with your new ride! Sounds like a great buy!