Having issue with ac system cycling on and off while traveling up hill, slopes, etc?? Have a 98 f150 with 4.6 auto and past several months ac acting weird. Its been really hot, ac still is cold but not sure why cycles on and off? Just goes off for several seconds then back on, does not shut off altogether just seems like compressor shuts off intermittently.
View 3 RepliesI have a '98 Volvo V70 that has a slow leak in the cooling system. I have brought it to my indie Volvo mechanic several times and they keep trying new things - they've replaced the thermostat, all the hoses, overflow tank, and this last time used Stop Leak in case I have a bad head gasket. I'm 4 visits and $1600 into this repair, and it's still leaking. Now they're saying it must be the head gasket and it will be $3000 to fix. What do I do???? How do I know it will fix the car and when do I ask for my money back? When do guarantees come into play? Is the car worth it? It's worth nothing with a leak, so I'm stuck in this corner.
View 7 RepliesI have a 1998 isuzu trooper. it is over heating and there is air being put into the cooling system. there is a lost of fluid but only the same amount each each time and i dnt knw where too. i replaced water pump had radiator serviced and it flowing at the right flow for truck. it still over heated. i tried chemical called blue devil it worked for two days then failed it is freezing cold here and no garage but do have all tools.
View 9 RepliesMy vehicle is a 98 F150 5.4 ltr Triton. I got a check engine light on and the error is "bank 2, system too lean." I read that this can be caused by a few different things like vacuum leaks or fuel filter and so far I haven't been able to narrow down. It started with occasional shaking at idle and its happening more as time goes. When at idle it often makes a sound like slurping the bottom of a drink with a straw and shakes intermittently. The fuel economy seems to have gone down. Sometimes it seems like it almost dies in idle, but always keeps running. It runs great when I push on the gas.
View 4 RepliesI have a ford f150 that is making a loud banging noise from the rear end. It only makes this noise when you are traveling down the road and let your foot off of the accelerator. A mechanic told me it is the catalytic converter but I am questioning this for he also told me it needed a tune up. A tune up was just recently done therefore I am just trying to find better answers to this problem.
View 1 RepliesMy brother and I both drive Chevy S10 ZR2s, 2001 and 1998 respectively, and they both have the same problem(s). Initially, the first minute after starting, the trucks will backfire and hesitate, which is most apparent when traveling up hill because if the engine hesitates when traveling up hill, we don't go anywhere. However, after this initial minute, the truck perform just fine, mostly.
The only time that they will not perform well after this initial minute is if we go to pass someone on the highway and need to accelerate harder to do so. If we do this, the same symptoms described earlier return, but they will not go away unless the trucks are shut off and allowed to "rest" for a few minutes. A similar problem was described in last week's show, but that was for a carbureted S10 and I'm pretty sure that ours are EFI.
I have a Chevrolet Prizm 1998 and the heat and cooling system only works on the highest setting which is actually the fan setting. When I have it on any of the other settings such as low or med nothing comes out, it doesn't work. I can hear it click on but nothing comes out. So when I'm driving depending on the weather I have the heat or cold air blasting out of the fan until it gets annoying and I turn it off. I've checked the fuses and they're good. I have not checked the relays because I'm not sure how to do that. I haven't taken it to a shop because I'm poor and don't have a trustworthy mechanic and it works just not on low or med. Should I have this looked at? I don't want to be causing any damage but it seems like it could be something simple.
View 2 RepliesI have a 2001 Nissan Altima. I seem to be having a fan problem. I started noticing that about 2 seconds after I turned the car off, the fans would come back on and run for ~25-30 seconds. I brought it in and my mechanic was thinking maybe a defective thermostat, so we replaced that. It still keeps happening, but now I've realized that the fans come back on anytime the car is turned off when the fans are running. If the fans are not running, they won't come back on. I've been trying to pay more attention to what is going on and when I first turn on the car, no fans are on (at least not the high fan, not sure if there are more than 1) After driving around town, the fans will turn on.
Normally, I believe the fan should then turn off once the coolant temp gets below a certain level. I let the car sit idling in the driveway for 15 min and the fans never turned off. I took it back to mechanic and repeated the idling for 15 min, fans never turned off. He checked the coolant temp with some sort of sensor and the temps were reading between 166-170 depending on where he aimed his device, so he said the fans should be turning off and it doesn't seem like the car is overheating.If he unplugged the temperature sensor, the gauge would go all the way to cold, but nothing changed for the fans, so he didn't think that was the problem.He took the fan relays along the edge of the car and swapped them around and nothing changed, so didn't think it was a relay problem. He removed some sensor on the passenger side on the back part of the engine and the fans got really loud and really fast. When he replace that, the fans would go back to normal until the engine temp got hot enough to turn them on and then they wouldn't go off again. He's thinking that sensor might be the problem, but isn't 100% sure. I think he said this was the cooling fan sensor or switch.
On a side note that may or may not be related. About 5 years ago the water pump broke. It started having the fans on all the time (even from a cold start), that turned out to be a faulty knock sensor. There was a knock sensor code and he replaced the knock sensor and then the fans went back to normal cycling. I didn't have any problems until early last fall, when I started noticing my current problems. I didn't worry about it until now, because as it got colder outside, it wasn't an issue. So outside temperature definitely effects it.
There are no codes this time.
The 2002 Nissan Xterra (4WD), automatic transmission, I drive for work is starting to have trouble traveling up hills. Just the other day I was traveling on a freeway up a fairly steep grade for ~6 miles. It wouldn't down shift and the pedal was to the floor while I watched the speed slowly drop. I started noticing earlier this year that it will disengage the cruise control on this same steep grade, though not every time. This used to be my personal vehicle and I have been driving it since 2002, so I know how it drives. A mechanic test drove it today and chalked it up to age (our admin assistant took it to the mechanic, so I didn't get to talk to him). Its got something like 170k miles. That is a lot of miles and it is 10 years old, but I am really wary of any diagnosis based solely on age.
View 8 Replies2007 Ford F150 half-ton. No cooling of air at the outlet of the ductwork. Freon charge is good, I watched the tech pull the system down and hold it for the prescribed time period. Compressor will not start. I am being told that this means a failed compressor, but I am of the idea that the pressure switch for low pressure must have failed, or the orifice is stopped up. I am also being told that the compressor, evaporator, and orifice tube needs replaced in order to remedy this issue. The counter man at my local parts house cannot find in his computer any pressure switches, kinda making me think that everything is in the unit. In short, if I can avoid buying the compressor, I would like to.
View 6 RepliesTwo weeks ago a large, industrial truck dropped a piece of bent steel pipe on the interstate in front of my 2010, 50k miles, Prius and (sadly) I was forced to hit or swerve into rush hour traffic and cause an accident. It tore up a good part of the cooling system and did some body damage. Of course I didn't know this at the time, but it began to overheat, so I pulled off the freeway and had it towed to a body shop. After about ten days, I got my Prius back.
View 13 RepliesIs it possible to use so much coolant system stop leak that you could clog the transmission cooling system?The fluid is burned and seems like I am having problems with gear shifting and power from the transmission. 2003 Olds Silhouette...
View 1 RepliesBurnt feedback hoses off and has no power going up hills, changed plugs and wires and did complete tune up still no power will the EGR valve cause it not to have power going up hill? No codes or check engine light on at this time.
View 10 RepliesI have a 1986 27ft Class C RV on a E350 chassis, 460 ci with about 140,000 miles on it. I inherited it when my Dad passed. I live in the southwest and I am have trouble with it, it seems to be a fuel supply problem, I think?
It runs fine on level ground, but we tried to go to the white mountains this weekend and could not do it. On an incline the engine would start to starve for power. At times we could only drive at 25 mph! It kind of seemed like it was running out of gas, if I tried to give it more throttle it would just die or fall on its face, if I let off the pedal and gave it gas again, it would run for a bit and then do the same again. We were lucky to get it back home. I replaced the electric fuel pump (on the side of the road) during the trip, but that made no difference.
The engine ran cool the whole time! it has only one 40 gallon tank. I can find any other fuel pump on it. but don't understand all the lines going to and from the gas tank either?
I noticed there are these silver metal tubes that feed off the exhaust manifold up to a cylinder looking thing on both sides of the block. One of the tubes is broken from the ex manifold and the manifold is plugged. Not sure how this got damaged or what this parts function is but was wondering if this could be a problem ..
I have a 98 ranger, 4x4, 5spd 3.0 with 88k miles.
While I am driving it, everything is great, but when i start to accelerate, or torque the engine (going up a hill), I get this clicking/vibration in my gas pedal. its extremely noticeable, by feeling and ear.
Its most common around 2k to 2.5k RPM. There is a lot of play in the throttle cable, about an 1" or so give untill you feel pressure. What I need to replace or tighten?
I have a 1998 F-150 V8 4.6L. Currently has about 83000 miles. I have had this problem twice now. When I park on an incline with the front up hill the engine will not start. It will crank like it is trying to start, but it sounds like its not getting enough fuel. Both times my tank has been nearly full or 3/4 full. Just put on a new fuel filter and the old one was still clean. ( I could blow through it with ease). I think it is the fuel pump.
View 1 RepliesI have noticed a smell of antifreeze in the cab of my 1998 Ford F-150 truck. 8 cylinder 4.6 litre triton engine. Some friends say the heater core has a leak. The windshield fogs up when running the defroster. How difficult is it to replace the heater core?
View 7 Replies256,000 miles. Started overheating as soon as the truck started up. Replaced the radiator and thermostat, and now overheats when driven over 40mph. (Does not overheat in idle or under 40). Everyone I've talked to says I've got a blown head gasket, but i DO NOT have water in my oil or white smoke coming out of the tailpipe.
View 2 RepliesI have a 1998 F-150 and when I turn on the heater there is no force in the air coming out of the vents.
View 2 Repliesgetting ready to do a cooling system flush per the instructions Cheezit posted a while back, which say "refer to Cooling System Draining, Filling and Bleeding in this section." I think I can figure out the drain and fill but how do you bleed the system?
View 14 Replies2003 F-150 Supercrew w/4.6 V-8, 2-wheel drive, 219,000 miles and very well maintained. I'm getting an intermittent overheat condition that I can't figure out. Coolant level is good and I just replaced the thermostat. My OBDII app showed it running at a constant 207 degrees (195 thermostat) after the thermostat. Appears to have good pressure at the cap. It ran great for 30 minutes at idle and then did fine for a five mile test drive.
The next day in the morning it overheated within 3 miles of the house (heat was on) and you could smell it. Pulled over and let it sit for 20 minutes and started back up and it stayed constant at 207 all the way to work (11 miles). It sat at work for about 7 hours and ran great all the way home (without heat, with heat, with air cond). Then this morning it did it again, overheating about 3 miles from home. This time I pulled over and shut it off for about three minutes. Turned the key on without starting and the temp was already dropping again. So I started it up and it continued to drop down so I drove to work with no more issues. This afternoon again went home and it never overheated.
I'm expecting it to overheat again in the morning. I'm gonna go live on the OBDII for temps during the drive tomorrow.