issues!!

B

Bbryan1220

New member
I have a 98 limited runner and have been noticing something lately, my mpg has dropped dramatically so far that i have filled her up about three times this week so far also i dont know if its related to that issue but my rpm wont go above 2000, it struggles so hard to get to 2500 nd then shoots back down to around 2200 i dont know if anyone has had these issues and i havent really gotten around to mods and stuff cus money is tight lately but if anyone knows how i might fix these problems please let me know any advice is greatly appreciated
 
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I would flush the trans if you haven't already. Also, replace the o2 sensors and/or fuel filter. Any check engine light? Cold weather also has effect on mpg. Do you know what kind of mpg's you are getting?
 
I would say the mpgs is a side effect rather then the actual problem...well obvious I guess but whatever, its late.
Go to an auto zone or whatver and check for a cel code, it sounds vaguely like a misfire or sluggish motor from ignition problems. Search the forums for those couple things and it should give you some suggestions as to what to do.

But instinct is saying plugs and wires to start with.

And first thing post up some more backup info on your truck, recent maintenance, any maint you've had done on it...it'll help people more knowledgeable then me give you some better info.
Sorry for the crap response.
 
Well yeah the cel is on and I was actually going to run down to autozone tomorrow and see what type of codes I'm getting, also as far as maintenance goes, I've had my runner for around 1year and changed the plugs and wires, air filter and rear shocks about 8 months ago and do regular oil changes every 3 months, besides that not much else going on
 
I'm also not sure as to what my exact mpg ratting is but I know it's pretty low seeing as how I haven't traveled much and had to put in 2full tanks so far this week
 
Based on your location, I'm hoping your 4Runner wasn't flooded during Hurricane Sandy. Flooding a vehicle can cause all sorts of problems.
 
Thanks for caring man, but no luckily no flood but unfortunately a tree fell on her :( had to take her to the shop to fix up the whole center body, windshield, hood, roof, etc. but she's all fine now
 
Clean MAF, clean throttle body, change front O2/AF sensor if over 80k on it, and see if that helps. Also check your PCV valve and change if it does not rattle freely.

Consider a SeaFoam treatment, or at least a bottle of Techron.
 
Bbryan1220 said:
Yeah I'm definitely getting the code later today
Click to expand...

My MPG dropped suddenly, and no CEL codes.

How many mines you have in the truck? If it is above 120 K miles, get a new DENSO AIR-FUEL ratio sensor. $45 free shipping on ebay and will do miracles! I experienced that.
 
nissanh said:
My MPG dropped suddenly, and no CEL codes.

How many mines you have in the truck? If it is above 120 K miles, get a new DENSO AIR-FUEL ratio sensor. $45 free shipping on ebay and will do miracles! I experienced that.
Click to expand...


Damn, ill check it out for sure, first ill see if any codes come up and if they don't then ill look into this and my truck has about 120k actually
 
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