Forums
New posts
Search forums
Image search
Shop
Amazon Store
T-Shirts
Stickers
Members
Current visitors
Supporting Member Upgrade
Sponsors
About
Log in
Register
Search
Search titles only
By:
Search titles only
By:
New posts
Search forums
Image search
Search
Search titles only
By:
Search titles only
By:
Menu
Install the app
Install
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Jeep Wrangler YJ
YJ General Discussion
'93 Wrangler YJ 4.0 doesn't start: turns over, good spark, 40 psi at fuel rail
Reply to thread
Message
<blockquote data-quote="JKP" data-source="post: 437082" data-attributes="member: 19393"><p>If the IAC is stuck closed it won't start. As you are cranking, slightly press the gas pedal. If it starts and runs as long as you press the pedal, but dies if you realease it, the IAC is stuck closed.</p><p></p><p>Spray some starting fluid down the throttle body, if it runs on that, you have a fuel problem. But 40 PSI should be plenty.</p><p></p><p>Long shot, but you can rotate the crank to TDC on cyl 1 and verify that the distributor rotor is pointing to the cyl 1 terminal. If not, timing chain has jumped.</p></blockquote><p></p>
[QUOTE="JKP, post: 437082, member: 19393"] If the IAC is stuck closed it won't start. As you are cranking, slightly press the gas pedal. If it starts and runs as long as you press the pedal, but dies if you realease it, the IAC is stuck closed. Spray some starting fluid down the throttle body, if it runs on that, you have a fuel problem. But 40 PSI should be plenty. Long shot, but you can rotate the crank to TDC on cyl 1 and verify that the distributor rotor is pointing to the cyl 1 terminal. If not, timing chain has jumped. [/QUOTE]
Verification
Post reply
Forums
Jeep Wrangler YJ
YJ General Discussion
'93 Wrangler YJ 4.0 doesn't start: turns over, good spark, 40 psi at fuel rail
Top
Bottom