Search results

I hate to be a curmudgeon - it may be a good idea to check emissions laws - engine swaps are problematic in some areas.

Sorry I am not in SC... Want to get yu some info - not always a major expense but we need to diagnose it. IS vehicle STOCK - not lifted , no over over size tires, then I would feel comfortable with a common alignment shop, many (at least here) will do free checks - get some estimates...

OK this is a replacement engine - in a 1999 GC, WHat ECM is installed the 99 or a 03? What codes are showing? What sensors and why? Wil eng start with TB closed? As mentioned knee jerk would be a vacuum leak - throttle stuck open.. NOW you mention - Having TB open this...

quick answer NO.

To add to colleagues suggestions Check for codes. Confirm throttle is closed

Be sure to use a scanner - do not solely rely on key on off trick or the light being on for all codes. I would check fuel pressure. After those easy tests i would look at live data ECT, MAP, FT;s, o2 voltages.

CEL - your friend the Check Engine Light. P0455 is a EVAP system large leak. Did you SCAN or do the key dance? >>> the key dance will NOT display all codes.

Is there another jeep dealer to discuss this pricing with? Jeep will have the correct hitch an wiring, and there will be no issue with modifications if the wiring was not up to jeep standards. the hitch assy* @250$ (US$), what did they quote as labor time? *82212180AC

fuel from pump? with a carb ok - FI mist have PSI checked. I agree That is a lot of voltage drop, and your past readings of 9v seams to condemn ballast. My only thought is I do not remember a ballast failing higher often going open - but a 6$ part and testing vs R&R just get one. for...

#8 fuel damper -- need more?

I would SCAN first - even if CEL is off. My thinking is getting the whole picture before R&R parts... PS I am a total optimist

OK did I misread - the flapper is missing? or you suspect it is the problem? Maybe some history - did u remove it, push it down and it fell, was there a problem before losing it? Is it still there?

MY mental picture is I doubt its the 'anti siphon' flap. Is your CEL on ? Description sounds like vent valve issue. Suggest you scan system even if light is off.

my guess - front is likely not locked diff open- its in 2wd. Rear you are spinning only (L/R?) 1 wheel on a non locker diff. Or the trans pawl is not engaged BUT it worked ok before - correct?

testing for clogged cat- 1) a exhaust back pressure gauge, you just install in place of a o2 sensor for testing, often a loaner tool but not expensive. 2) Using a vacuum gauge - raise and hold RPM to @1500 observe reading the vac should hold steady f it starts o drop suspect...

OOPS forgot to add this above

some things to look at Always easy simple first. Not consuming fluids, coolant, trans ? Air fliter on or off is same? how did old plugs look - wet, dry, black tan? The Vac dropping hints at an exhaust restriction - gradual vac drop at steady throttle @1500. The choke plate is full open...

let us know if still working this- FYI lift glass working ok - then there is a manual release for tail gate in rear - small access panel on trim panel - check owners manual for info. My guess is the swing gate is where the issue Is .

did you use a scanner? That rpm I would expect code . Use the old school spray trick for a vac leak, you did replace manifold gaskets ?

knee jerk answer- there is a vacuum leak. PCV/CCV, brake booster va lnes? try the old school carb spray trick to locate vac leak - intak manifold? tell us which eng. 2.5 4.0 ? Why new manifold? THe system would have a code SO a scan would be a start - even if light is off post codes