How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Matt Your Own Question
Matt
Matt, Engineer
Category: Transmissions
Satisfied Customers: 20608
Experience:  Mechanical Engineer BEng Hons22 years experience in car engine industry, 10 years in formula 1
12772297
Type Your Transmissions Question Here...
Matt is online now
A new question is answered every 9 seconds

I have a 2004 jeep rubicon. the gear makes a terrible grinding

Customer Question

I have a 2004 jeep rubicon. the gear makes a terrible grinding noise going into second gear..no place else. I was thinking it might be the synchro as per the message boards I have been reading but I see it listed as several different parts (synchro blocking ring, etc..) so I am not sure what the heck to look for.
Submitted: 1 year ago.
Category: Transmissions
Expert:  Matt replied 1 year ago.
Hellothe first thing to do is bleed the clutch hydraulics and ensure that you replenish the all fluid in the system and get any trapped air outI favour having a clear hose from the nipple to a jar 1/2 full of old fluid and with the nipple closed your assistant pushes the pedal up and down a few times, then holds it down whilst you then crack open the nipple and close it again whilst fluid is still flowing.If this doesn't help then next check the gear linkage for any worn bushes or pivots as any lost motion means reduced effort at the gearbox and replace as necessary. Ideally have your assistant move the gear lever with you watching the linkage and see if you can spot where there is any excessive play or lost motion.If its a cable type linkage check along the cable lengths for any damage or signs of heavy wear / fretting, if you find any replace the cable. There may be some adjustment on the cable tension at the gearbox end (depending on the year) and the cable should be tensioned so there is a minimum of slack but not so its taughtThen check gearbox oil levels and if its not been changed in the last 20K miles then drain it off and fill with fresh. I can strongly recommend the use of Castrol Syntrans 75W90 (was called SMX-S) as I've known it help with shift issues on many manual gearboxes
Expert:  Matt replied 1 year ago.
Hi
do you still need help?

Related Transmissions Questions