P1494 JEEP Meaning The Evaporative emissions system is designed to prevent the escape of fuel vapors from the fuel system. Leaks in the system ca allow vapors to escape into the atmosphere. … If the first checks pass, the PCM then uses the LDP to seal the vent valve and pump air into the system to pressurize it.
My 1999 Grand Cherokee check engine light came on indicating code P1494…dealer told me it was a vacum leak detection pump and repair cost would be … Mr. Hyde! ArloGuthroJeep’s Avatar. 2004 WJ. Join Date: Mar 2005.
32yr ASE Master Tech, 9yr Chrysler Master Tech, 19 yr Jeep Dealership service including AMC/Eagle. … P1494-LEAK DETECTION PUMP SW OR MECHANICAL FAULT. … The Leak Detection Pump (LDP) is located under the left quarter panel behind the left/rear wheel (LOCATION, LDP / EVAP CANISTER).
jeep grand cherokee p0155 code p1494 – Jeep 2004 Grand Cherokee question.
what does the error code P1494 leak detection pump mean and what do I need to do to fix it – Jeep 1999 Grand Cherokee question.
I purchased a 2001 Jeep Grand Cherokee 4.0L last week, shortly after purchasing the check engine light come on and gave me code P1494.