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Chris, Shop Foreman
Category: Jeep
Satisfied Customers: 3346
Experience:  Jeep Certified Master Tech
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I checked compression & it is good. I removed the injectors

Customer Question

I checked compression & it is good. I removed the injectors and cleaned them and installed them--cylinders 5 & 7 injectors were installed in cylinders 1 & 3. Started engine and still had a miss. Scanned for info and found that the same two cylinders (5 & 7) were still misfiring. Still need suggestions.
JA: How many miles are on the car? Is it a steady misfire? Or random?
Customer: 218,000 miles and misfire is steady.
JA: What is the model/year of your Jeep?
Customer: 2003 grand cherokee
JA: Are you fixing your Grand Cherokee yourself? What have you tried so far?
Customer: I had this conversation yesterday and provided all the info. Do you not have access to yesterday's posts?
JA: Anything else you want the mechanic to know before I connect you?
Customer: No
Submitted: 9 months ago.
Category: Jeep
Expert:  kalamykid replied 9 months ago.

What size engine do you have in your Jeep?

Expert:  kalamykid replied 9 months ago.

Did you write down the compression readings for all 8 cylinders? What where the readings?

Customer: replied 9 months ago.
4.7--The compression readings were between 120psi and 130 psi on cylinders 1, 3, 5, & 7
Expert:  kalamykid replied 9 months ago.

You really need to do a comp test on the other side of the engine so you have numbers to compare to the ones you have. I will also need to know the exact numbers for all of the cylinders please, so write each one down, so I know what you are dealing with please?

Customer: replied 9 months ago.
Sorry I did not respond in an expeditiously. Attached is all I have done and also observations I made.
Expert:  kalamykid replied 9 months ago.

Hold on I have to install a doc file opener.